When we wrote the Holy Qur'an, I missed one of the Verses of Surat-al-Ahzab which I used to hear Messenger of Allah ﷺ reciting. Then we searched for it and found it with Khuzaʿima bin Thabit Al-Ansari. The Verse was:-- 'Among the Believers are men Who have been true to Their Covenant with Allah, Of them, some have fulfilled Their obligations to Allah (i.e. they have been Killed in Allah's Cause), And some of them are (still) waiting" (33.23) So we wrote this in its place in the Qur'an.
أَسْمَعُ رَسُولَ اللَّهِ ﷺ يَقْرَأُ بِهَا فَالْتَمَسْنَاهَا فَوَجَدْنَاهَا مَعَ خُزَيْمَةَ بْنِ ثَابِتٍ الأَنْصَارِيِّ {مِنَ الْمُؤْمِنِينَ رِجَالٌ صَدَقُوا مَا عَاهَدُوا اللَّهَ عَلَيْهِ فَمِنْهُمْ مَنْ قَضَى نَحْبَهُ وَمِنْهُمْ مَنْ يَنْتَظِرُ } فَأَلْحَقْنَاهَا فِي سُورَتِهَا فِي الْمُصْحَفِ