Sayyiduna Zaid bin Thabit (may Allah be pleased with him) used to say that when the Holy Qur’an was written in a Mushaf (codex) by copying from scattered parchments, I could not find the verse (23) of Surah Al-Ahzab. I used to hear the Messenger of Allah (peace and blessings of Allah be upon him) reciting it. Then I found it only with Khuzaymah Ansari (may Allah be pleased with him), whose testimony the Messenger of Allah (peace and blessings of Allah be upon him) had considered equal to the testimony of two men. That verse was: “Among the believers are men who have been true to their covenant with Allah; some of them have fulfilled their vow (by being martyred)....”