The Prophet (ﷺ) used to invoke Allah in his prayer, "O Allah! Save `Aiyash bin Abi Rabi`a and Salama bin Hisham and Al-Walid bin Al-Walid; O Allah! Save the weak among the believers; O Allah! Be hard upon the tribe of Mudar and inflict years (of famine) upon them like the (famine) years of Joseph."
A Jew said to `Umar, "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 `Id (festival) day." `Umar said, "I know definitely on what day this Verse was revealed; it was revealed on the day of `Arafat, on a Friday."
That he heard `Umar 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."
The Prophet (ﷺ) embraced me and said, "O Allah! Teach him (the knowledge of) the Book (Qur'an)."
Abu Barza said, "(O people!) Allah makes you self-sufficient or has raised you high with Islam and with Muhammad."