The lives of `Abdullah ibn `Umar and `Abdullah ibn `Abbas offer compelling examples of devotion to the Sunnah of the Prophet Muhammad (peace be upon him). `Abdullah ibn `Umar, in particular, was renowned for his strict adherence to prophetic practices. His narrations frequently underscore his efforts to emulate the Prophet in every detail. For instance, he would only offer the Duha prayer on two specific occasions, similar to the Prophet's practice: upon reaching Mecca, performing Tawaf and two rak`at at Maqam Ibrahim, and when visiting the Mosque of Quba every Saturday Bukhari 20:4. This dedication is further highlighted by his insistence on following the Prophet's Sunnah even in the face of political strife, as when he stated, "Verily, in Allah's Messenger (ﷺ), you have a good example (to follow)" during a period of conflict Bukhari 25:172. He performed Hajj and Umrah together, bringing a Hadi, explicitly stating that [the Prophet used to do like that]Bukhari 25:186.

`Abdullah bin `Umar also transmitted significant details about the Prophet's physical description and habits, such as the Prophet's depiction of the Dajjal Bukhari 0:0, offering a glimpse into the Prophet's teachings on eschatology. His sister Hafsa attested to the Prophet's high regard for him, narrating that the Prophet (peace be upon him) described him as [a pious man]Bukhari 0:0 and [a righteous man]Bukhari 0:0. These accounts collectively paint a picture of `Abdullah ibn `Umar as a faithful student and follower, whose life was a testament to the Quranic call to obey Allah and obey the Messenger.

`Abdullah ibn `Abbas, cousin of the Prophet (peace be upon him), earned the esteemed title "interpreter of the Quran" (Tarjuman al-Qur'an) due to his profound understanding of the holy book. His narrations often provide context and explanation for Quranic verses, demonstrating his role in preserving the foundational texts of Islam. For example, he elucidated the meaning of It is those who believe and confuse not their belief with wrong (worshipping others besides Allah.), clarifying that "wrong" in this context refers to associating partners with Allah Bukhari 2:25. This interpretation, shared with the companions, directly connects to the Quranic statement that joining others in worship with Allah is a great injustice indeed.

Both `Abdullah ibn `Umar and `Abdullah ibn `Abbas were crucial in transmitting the Prophet's sayings and actions, forming the bedrock of the Hadith corpus. `Abdullah ibn `Abbas narrated the Prophet's sermon about the decreasing number of Ansar and the treatment of their benevolent and wrong-doing members, showing the Prophet's concern for community dynamics Bukhari 11:51. He also transmitted the Prophet's command to Mu'adh when sending him to Yemen, instructing him to first invite people to testify that none has the right to be worshipped but Allah and I am Allah's Messenger, followed by the establishment of prayers and Zakat (Bukhari 24:1, 24:60, 24:96). This systematic approach to dawah (inviting to Islam) became a model for future generations.

The companions also engaged in scholarly discourse, sometimes disagreeing, as seen in the discussion between Ibn `Umar and Ibn `Abbas regarding the dead being punished by the crying of their relatives (Bukhari 0:0, 23:46). While Ibn `Umar upheld `Umar's position based on a Hadith, `Aisha, upon hearing their account, clarified that the Prophet (peace be upon him) meant that Allah increases the punishment of a non-believer due to the weeping of their relatives, not a believer. She cited the Quranic principle: No burdened soul will bear another's burden. This instance illustrates the critical role of scholarly interpretation and cross-referencing within the early Muslim community to ensure accurate understanding of the Prophet's teachings, always returning to the Quran as the ultimate criterion.

The narrations of the `Abdullahs also provide crucial insights into Islamic law and ethics. A recurring theme in the Hadith narrated by `Abdullah (bin Mas`ud) is the severity of taking a false oath to usurp another's property. Multiple accounts record the Prophet (peace be upon him) stating that [Whoever takes a false oath to deprive somebody of his property will meet Allah while He will be angry with him]Bukhari 0:0. This prophetic warning is explicitly linked to the Quranic verse: Verily! Those who purchase a small gain at the cost of Allah's covenants and their own oaths. Al-Ash'ath bin Qais, a companion present during some of these narrations, confirmed that this verse was revealed concerning a dispute he had over a well, where the Prophet (peace be upon him) advised him to bring witnesses or accept his opponent's oath Bukhari 0:0. This clearly demonstrates how Quranic revelation and prophetic judgment were interconnected, establishing legal principles against fraud and injustice, particularly concerning property rights.

Furthermore, `Abdullah bin Mas`ud's narration that [Abusing a Muslim is Fusuq (an evil doing) and killing him is Kufr (disbelief)]Bukhari 2:41 establishes a fundamental ethical principle within Islam, emphasizing the sanctity of a Muslim's honor and life. This highlights the comprehensive nature of Islamic teachings, covering not only ritual worship but also interpersonal conduct.

The rulings related to fasting during the days of Tashriq (11th, 12th, and 13th of Dhul-Hijjah) show a specific legal allowance: nobody was permitted to fast on these days except those who could not afford the Hadi (sacrifice) (Bukhari 0:0, 30:103). Ibn `Umar further clarified that those performing Hajj-at-Tamattu` who could not afford the Hadi could fast up to the day of `Arafat, and if they missed that, they could fast on the days of Mina Bukhari 30:104. This demonstrates the flexibility within Islamic law to accommodate those with different circumstances, ensuring that the spirit of worship is maintained.

The `Abdullahs also left an indelible mark on the understanding of Islamic worship and spiritual practice. `Abdullah bin `Amr bin Al-`As's account of the Prophet's advice on balancing worship with other rights is particularly insightful. The Prophet (peace be upon him) admonished him for continuous fasting and all-night prayers, reminding him: [Don't do that; fast for few days and then give it up for few days, offer prayers and also sleep at night, as your body has a right on you, and your wife has a right on you, and your guest has a right on you]Bukhari 30:82. This teaching emphasizes moderation and the recognition of various rights (Huquq al-`Ibad) as an integral part of holistic worship, preventing burnout and ensuring the fulfillment of social responsibilities. The Prophet (peace be upon him) suggested fasting three days a month, equivalent to fasting throughout the year due to multiplied rewards, and for `Abdullah's insistence, allowed him to fast like Prophet David, i.e., on alternate days (Bukhari 30:82, 30:85).

`Abdullah bin Mas`ud transmitted the specific wording for the Tashahhud (testimony in prayer), which includes [at-Tahiyatu li l-lahi wa s-salawatu wa t-taiyibat. As-salamu `alaika aiyuha n-Nabiyu wa rahmatu l-lahi wa barakatuh. Assalamu `alaina wa `ala `ibadi l-lahi s-salihin](Bukhari 10:225, 10:228). The Prophet (peace be upon him) taught this after correcting the companions who used to say "Peace be on Allah," explaining that [Allah Himself is As-Salam (Peace)]Bukhari 10:228. This detail is fundamental to the correct performance of prayer and reflects the Prophet's meticulous guidance in matters of ritual.

The accounts also shed light on practical aspects of prayer. For instance, the Prophet (peace be upon him) would shorten prayers upon hearing a child's cries, demonstrating compassion and consideration for the community Bukhari 10:102. Ibn `Abbas narrated that the Prophet (peace be upon him) allowed praying at home during rainy and muddy conditions, stating it was [a license]Bukhari 10:14. These narrations show the practicality and flexibility within Islamic worship, rooted in the Prophet's example.

The `Abdullahs also conveyed important teachings regarding eschatology and the unseen world. `Abdullah bin Mas`ud narrated the Prophet's description of the Masih Ad-Dajjal, including his physical appearance as blind in the right eye, resembling a "bulging out grape" Bukhari 0:0. In the same Hadith, the Prophet also described seeing Jesus, son of Mary, in a dream circumambulating the Ka`ba. Such narrations are vital for understanding Islamic beliefs about the End Times and the signs preceding them.

Ibn `Abbas's narration about the jinn listening to the Quran at Nakhla Bukhari 10:167 highlights the profound impact of revelation not only on humanity but also on other conscious beings. This event, which led to the revelation of Surah Al-Jinn, underscores the universal reach of the Quran's message and the reality of the unseen world.

Furthermore, the Prophet's prayer for famine upon the people who refused Islam, leading to a year of severe hardship, as narrated by `Abdullah bin Mas`ud Bukhari 15:3, touches upon divine intervention and the consequences of rejecting the truth. This account, linked to Quranic verses about a "plainly visible smoke", serves as a historical and eschatological lesson.

In conclusion, the `Abdullahs, particularly `Abdullah ibn `Umar and `Abdullah ibn `Abbas, were indispensable figures in the early Islamic community. Their meticulous dedication to preserving and transmitting the Sunnah, coupled with their profound understanding of the Quran, formed a crucial bridge between the era of revelation and subsequent generations of Muslims. Through their narrations, legal interpretations, and practical examples, they illuminated the core tenets of Islamic belief, worship, ethics, and eschatology. Their lives exemplify the comprehensive and practical nature of Islam, providing enduring guidance for all who seek to embody the teachings of the Prophet Muhammad (peace be upon him) and the Quran.