[Machine] Muhammad ibn Umar narrated and mentioned the lineage in his manner and added that he witnessed the Battle of Uhud with the seventy Ansar. He used to write down the revelations for the Messenger of Allah, peace be upon him. There was a difference of opinion regarding the time of his death. It was said that he died during the caliphate of Umar in the year twenty-two, while others said he died during the caliphate of Uthman in the year thirty. This confirms the statements that Uthman ordered the compilation of the Quran.  

ثَنَا مُحَمَّدُ بْنُ عُمَرَ فَذَكَرَ النَّسَبَ بِنَحْوِهِ وَزَادَ وَشَهِدَ الْعَقَبَةَ فِي السَّبْعِينَ مِنَ الْأَنْصَارِ «وَكَانَ يَكْتُبُ لِرَسُولِ اللَّهِ ﷺ الْوَحْيَ وَقَدِ اخْتُلِفَ فِي وَقْتِ وَفَاتِهِ فَقِيلَ أَنَّهُ مَاتَ فِي خِلَافَةِ عُمَرَ سَنَةَ اثْنَتَيْنِ وَعِشْرِينَ وَقِيلَ مَاتَ فِي خِلَافَةِ عُثْمَانَ سَنَةَ ثَلَاثِينَ وَهَذَا أَثْبَتُ الْأَقَاوِيلِ بِأَنَّ عُثْمَانَ أَمَرَهُ بِأَنْ يَجْمَعَ الْقُرْآنَ»