[Machine] Abu Bakr sent to me the killing of Al-Yamama; so when 'Umar was sitting with him, Abu Bakr said, "O Zaid ibn Thabit! You are a young, smart boy. We do not accuse you. You used to write down the revelation for the Messenger of Allah ﷺ. So, try to retrieve the Qur'an and gather it."
Zaid said, "By Allah, if they ordered me to carry a mountain from the mountains, it would not have been heavier on me than what they have burdened me with of gathering the Qur'an." So I said, "Are you doing something that the Messenger of Allah ﷺ did not do?"
He said, "By Allah, this is better." Abu Bakr kept urging me until Allah opened my chest (made it easy) for what He had opened the chests of Abu Bakr and 'Umar.
أَرْسَلَ إِلَيَّ أَبُو بَكْرٍ مَقْتَلَ الْيَمَامَةِ فَإِذَا عُمَرُ عِنْدَهُ جَالِسٌ قَالَ أَبُو بَكْرٍ يَا زَيْدُ بْنَ ثَابِتٍ إِنَّكَ غُلَامٌ شَابٌّ عَاقِلٌ لَا نَتَّهِمُكَ قَدْ كُنْتَ تَكْتُبُ الْوَحْيَ لِرَسُولِ اللهِ ﷺ فَتَتَبَّعِ الْقُرْآنَ فَاجْمَعْهُ قَالَ زَيْدٌ فَوَاللهِ لَوْ كَلَّفُونِي نَقْلَ جَبَلٍ مِنَ الْجِبَالِ مَا كَانَ أَثْقَلَ عَلَيَّ مِمَّا أَمَرَنِي بِهِ مِنْ جَمْعِ الْقُرْآنِ فَقُلْتُ أَتَفْعَلَانِ شَيْئًا لَمْ يَفْعَلْهُ رَسُولُ اللهِ ﷺ قَالَ هُوَ وَاللهِ خَيْرٌ فَلَمْ يَزَلْ أَبُو بَكْرٍ يُرَاجِعُنِي حَتَّى شَرَحَ اللهُ صَدْرِي بِالَّذِي شَرَحَ لَهُ صَدْرَ أَبِي بَكْرٍ وَعُمَرَ