Narrated Zaid bin Thabit:
When we collected the fragramentary manuscripts of the Qur'an into copies, I missed one of the Verses of Surat al-Ahzab which I used to hear Allah's Apostle reading. Finally I did not find it with anybody except Khuzaima Al-Ansari, whose witness was considered by Allah's Apostle equal to the witness of two men. (And that Verse was:) 'Among the believers are men who have been true to their covenant with Allah.'
• Sahih al-Bukhari, Vol. 6, Book of Prophetic Commentary on the Qur'an, Hadith 307
• Sahih al-Bukhari, Book of Prophetic Commentary on the Qur'an, Hadith 307