A Jew said to ʿUmar, "O Chief of the Believers, if this verse: 'This day I have perfected your religion for you, completed My favors upon you, and have chosen for you, Islam as your religion.' (5.3) had been revealed upon us, we would have taken that day as an ʿId (festival) day." ʿUmar said, "I know definitely on what day this Verse was revealed; it was revealed on the day of ʿArafat, on a Friday."  

رَجُلٌ مِنَ الْيَهُودِ لِعُمَرَ يَا أَمِيرَ الْمُؤْمِنِينَ لَوْ أَنَّ عَلَيْنَا نَزَلَتْ هَذِهِ الآيَةُ { الْيَوْمَ أَكْمَلْتُ لَكُمْ دِينَكُمْ وَأَتْمَمْتُ عَلَيْكُمْ نِعْمَتِي وَرَضِيتُ لَكُمُ الإِسْلاَمَ دِينًا} لاَتَّخَذْنَا ذَلِكَ الْيَوْمَ عِيدًا فَقَالَ عُمَرُ إِنِّي لأَعْلَمُ أَىَّ يَوْمٍ نَزَلَتْ هَذِهِ الآيَةُ نَزَلَتْ يَوْمَ عَرَفَةَ فِي يَوْمِ جُمُعَةٍ سَمِعَ سُفْيَانُ مِنْ مِسْعَرٍ وَمِسْعَرٌ قَيْسًا وَقَيْسٌ طَارِقًا  

That he heard ʿUmar speaking while standing on the pulpit of the Prophet ﷺ in the morning (following the death of the Prophet), when the people had sworn allegiance to Abu Bakr. He said the Tashah-hud before Abu Bakr, and said, "Amma Ba'du (then after) Allah has chosen for his Apostle what is with Him (Paradise) rather than what is with you (the world). This is that Book (Qur'an) with which Allah guided your Apostle, so stick to it, for then you will be guided on the right path as Allah guided His Apostle with it."  

أَنَّهُ سَمِعَ عُمَرَ الْغَدَ حِينَ بَايَعَ الْمُسْلِمُونَ أَبَا بَكْرٍ وَاسْتَوَى عَلَى مِنْبَرِ رَسُولِ اللَّهِ ﷺ تَشَهَّدَ قَبْلَ أَبِي بَكْرٍ فَقَالَ أَمَّا بَعْدُ فَاخْتَارَ اللَّهُ لِرَسُولِهِ ﷺ الَّذِي عِنْدَهُ عَلَى الَّذِي عِنْدَكُمْ وَهَذَا الْكِتَابُ الَّذِي هَدَى اللَّهُ بِهِ رَسُولَكُمْ فَخُذُوا بِهِ تَهْتَدُوا وَإِنَّمَا هَدَى اللَّهُ بِهِ رَسُولَهُ  

The Prophet ﷺ embraced me and said, "O Allah! Teach him (the knowledge of) the Book (Qur'an)."  

ضَمَّنِي إِلَيْهِ النَّبِيُّ ﷺ وَقَالَ اللَّهُمَّ عَلِّمْهُ الْكِتَابَ  

Abu Barza said, "(O people!) Allah makes you self-sufficient or has raised you high with Islam and with Muhammad."  

إِنَّ اللَّهَ يُغْنِيكُمْ أَوْ نَغَشَكُمْ بِالإِسْلاَمِ وَبِمُحَمَّدٍ ﷺ قَالَ أَبُو عَبْد اللَّهِ وَقَعَ هَاهُنَا يُغْنِيكُمْ وَإِنَّمَا هُوَ نَعَشَكُمْ يُنْظَرُ فِي أَصْلِ كِتَابِ الِاعْتِصَامِ  

ʿAbdullah Bin ʿUmar wrote to ʿAbdul Malik bin Marwan, swearing allegiance to him: 'I swear allegiance to you in that I will listen and obey what is in accordance with the Laws of Allah and the Tradition of His Apostle as much as I can.'  

بِالسَّمْعِ وَالطَّاعَةِ عَلَى سُنَّةِ اللَّهِ وَسُنَّةِ رَسُولِهِ فِيمَا اسْتَطَعْتُ