Prophet Muhammad's mission is fundamentally defined by divine revelation. The Quran explicitly states that he received "what has been revealed to you, O Muhammad, and what was revealed before you", confirming previous scriptures like the Torah and the Gospel. This highlights the continuity of divine message while establishing the Quran as the ultimate and complete revelation. Ibn Kathir notes that the Quran itself is a clear proof of Muhammad's prophethood, narrating historical events and the secrets of the People of the Book, information the Prophet could not have acquired by human means (Tafsir Ibn Kathir, 2:99). The Quran challenges any doubters to produce a surah the like thereof, a challenge that has remained unanswered, affirming its miraculous nature and divine origin. As Ma'arif-ul-Quran explains, this challenge is not merely about eloquence but encompasses the Quran's comprehensiveness, wisdom, and transformative power, originating from an unlettered prophet in an illiterate society (Tafsir Ma'arif-ul-Quran, 2:23). The method of revelation was direct to his heart, encompassing both words and meanings, contrary to any notion of him merely conveying concepts (Tafsir Ma'arif-ul-Quran, 2:97).

The universality and finality of Prophet Muhammad's prophethood are central tenets. Unlike earlier prophets who were sent to specific peoples and periods, Prophet Muhammad's message is for "all of humanity" (Tafsir Ma'arif-ul-Quran, 2:30). The Quran consistently uses phrases like "what was revealed before you" (4:60, 39:65, 42:3) when speaking of earlier revelations, but never mentions a prophet or book to come after him, thereby implicitly asserting the finality of his message (Tafsir Ma'arif-ul-Quran, 2:4). This position is explicitly stated in his Hadith, where he said, "no prophet is to come after me" (Tafsir Ma'arif-ul-Quran, 2:30). His prophethood thus serves as the culmination of divine guidance, making adherence to his teachings binding until the Day of Judgment.

The Quran portrays Prophet Muhammad as an excellent example for believers. His character was marked by leniency, compassion, and forgiveness, even in the face of disobedience. During the Battle of Uhud, despite his companions' strategic errors, Allah reminded the Prophet, "by mercy from Allah, [O Muhammad, you were lenient with them. And if you had been rude in speech and harsh in heart, they would have disbanded from about you]." This verse emphasizes the importance of gentleness in leadership and da'wah (calling to Islam), illustrating that harshness drives people away (Tafsir Ma'arif-ul-Quran, 3:159). He was commanded to pardon them, ask forgiveness for them, and consult them in matters, demonstrating a consultative approach even after mistakes had been made. This consultative practice was not out of necessity, as he received divine revelation, but to honor his companions and establish the Sunnah of mutual consultation for his community (Tafsir Ma'arif-ul-Quran, 3:159).

His interactions with people, both believers and disbelievers, exemplified the highest moral standards. Even when facing hostility and rejection from the People of the Book, he was instructed to invite them to "a word common between us and you that we worship none but Allah", emphasizing common ground. This approach reflects Islam's teaching of tolerance and dignified interaction, even with opponents, as long as they are not belligerent (Tafsir Ma'arif-ul-Quran, 3:30). The Prophet's conduct in forbidding wine illustrates a gradual and wise approach to social change, first highlighting its evils, then restricting it, and finally prohibiting it entirely, recognizing human temperament (Tafsir Ma'arif-ul-Quran, 2:219). His Companions' immediate and unwavering obedience upon hearing the prohibition, even pouring out wine in the streets of Madinah, stands as a testament to his profound influence and their sincerity (Tafsir Ma'arif-ul-Quran, 2:219).

Prophet Muhammad's teachings laid the groundwork for the fundamental principles of Islamic faith and practice. Central to this is the concept of Iman (faith), which, as Tafsir Ma'arif-ul-Quran explains, signifies "accepting with complete certitude the statement made by a prophet out of one's total confidence and trust in him." This includes belief in the unseen (Al-Ghayb), encompassing Allah, His angels, books, messengers, the Last Day, Paradise, and Hell (Tafsir Ma'arif-ul-Quran, 2:3; Tafsir Ibn Kathir, 2:3). Belief in all divine books and messengers, without distinction, is a cornerstone of faith, as stated, "We make no distinction between any of His messengers" (Tafsir Ibn Kathir, 2:4).

The twin pillars of practice are Salah (prayer) and Infaq (spending in the way of Allah). To "establish the prayer" means to perform it correctly, regularly, and with inward concentration, humility, and awe (Tafsir Ma'arif-ul-Quran, 2:3; Tafsir Ibn Kathir, 2:3). Spending in the way of Allah encompasses all forms of charity, obligatory (Zakah) and voluntary, reminding believers that all possessions are gifts from Allah (Tafsir Ma'arif-ul-Quran, 2:3). These practices are not merely ritualistic but are deeply intertwined with faith. As the Prophet stated, "Islam is built upon five (pillars): Testifying that there is no deity worthy of worship except Allah and that Muhammad is the Messenger of Allah, establishing the prayer, giving Zakah, fasting Ramadan and Hajj to the House" (Tafsir Ibn Kathir, 2:3). This Hadith, also recorded in the Two Sahihs, underscores the foundational nature of these acts.

The Prophet's role extended to providing clear guidance on ethical conduct and legal rulings, responding to the questions and challenges of his community. The Quran repeatedly features queries addressed to the Prophet, prefaced by "They ask you, O Muhammad" (2:189, 2:215, 2:217, 2:219, 2:222, 4:127, 5:4). These verses illustrate his function as a living source of religious rulings (fatawa) (Tafsir Ma'arif-ul-Quran, 2:215). For instance, regarding menstruation, he clarified its nature as harm and commanded believers to "keep away from wives during menstruation," while emphasizing the permissibility of all other intimacy, provided it is within the lawful bounds (Tafsir Ibn Kathir, 2:222).

In financial matters, the prohibition of riba (interest) was a stern command, with Allah declaring "a war [against you from Allah and His Messenger]" for those who persist in it. This severe warning, unparalleled for other sins except disbelief, underscores the gravity of riba in Islam (Tafsir Ma'arif-ul-Quran, 2:279). The Prophet's Farewell Address explicitly stated, "Verily, every case of Riba from the Jahiliyyah is completely annulled" (Tafsir Ibn Kathir, 2:279), and he allowed only the principal amount to be returned, ensuring no injustice in debt. Furthermore, in cases of financial hardship for debtors, the Quran encourages creditors to "grant him time till it is easy for him to repay; but if you remit it by way of charity, that is better for you if you did but know". This demonstrates a principle of compassion and seeking Allah's reward through leniency.

The Prophet also guided the community on social interactions. The prohibition of using ambiguous or insulting language, such as the Jews' use of "Ra'ina", teaches believers to choose words carefully and maintain respectful discourse. This instruction extends to avoiding imitation of disbelievers in speech and actions, emphasizing the distinct identity of the Muslim community (Tafsir Ibn Kathir, 2:104).

Prophet Muhammad's legacy extends beyond his lifetime through the continuity of his teachings and the establishment of his Ummah (community) as his inheritors of leadership. The Quran reminds believers that "Muhammad is not but a messenger. [Other messengers have passed on before him]," underscoring that the message and the mission transcend the individual prophet. This was a crucial lesson for the companions during the Battle of Uhud when false rumors of his death caused confusion, prompting Abu Bakr to remind them of this verse, thus stabilizing the nascent Muslim community (Tafsir Ibn Kathir, 3:144).

The Prophet's role as the final vicegerent (Khalifah) on earth meant that after him, the Ummah collectively inherited the responsibility of maintaining spiritual and temporal order. This led to the institution of the Caliphate, where a leader is chosen by the community for governance, a principle that preceded modern democratic ideals (Tafsir Ma'arif-ul-Quran, 2:30). The importance of consultation (shura) in decision-making, a practice the Prophet regularly engaged in with his companions, became a fundamental principle of Islamic governance, as indicated in the verse "And consult them in the matter" (Tafsir Ibn Kathir, 3:159).

Crucially, Allah guaranteed the preservation of the Quran and the Sunnah. The Quran, as Allah's protected word, remains intact, and the teachings of the Prophet, embodied in the Sunnah and Hadith, are also safeguarded. As Ma'arif-ul-Quran highlights, the detailed preservation of Hadith ensures that the Prophet's interpretations and practical applications of the Quran remain accessible, making his teaching indispensable for a proper understanding and implementation of Islam (Tafsir Ma'arif-ul-Quran, 2:129). This divine protection extends to scholars who preserve and transmit this knowledge, acting as a bulwark against distortion and misrepresentation.

Prophet Muhammad is the divinely appointed Messenger who brought humanity the final, complete, and perfectly preserved guidance. His life embodied the ideals he preached, serving as an enduring model of character, leadership, and unwavering commitment to God's will. The Quran, his primary miracle, along with his Sunnah, provides comprehensive instruction for all aspects of life, from foundational beliefs and acts of worship to ethical conduct and legal principles. His mission unified diverse communities and established a legacy that continues to inspire and guide billions globally, promising triumph to those who sincerely follow his path.