[Machine] I heard the Messenger of Allah (Peace be upon him) recite it, so I sought it and found it with Khuzaymah ibn Thabit al-Ansari: "Among the believers are men who have been true to their covenant with Allah." So I added it to its Surah in the Mushaf.
أَسْمَعُ رَسُولَ اللهِ ﷺ يَقْرَأُهَا فَالْتَمَسْتُهَا فَوَجَدْتُهَا مَعَ خُزَيْمَةَ بْنِ ثَابِتٍ الْأَنْصَارِيِّ {مِنَ الْمُؤْمِنِينَ رِجَالٌ صَدَقُوا مَا عَاهَدُوا اللهَ عَلَيْهِ} فَأَلْحَقْتُهَا فِي سُورَتِهَا مِنَ الْمُصْحَفِ