It is narrated from ‘Ammarah bin Khuzaymah al-Ansari that his uncle, who was a Companion, related to him that the Noble Prophet (peace and blessings be upon him) bought a horse from a Bedouin. The Noble Prophet (peace and blessings be upon him) said to him: Come with me and receive the price of the horse. The Noble Prophet (peace and blessings be upon him) was swift in pace, while the Bedouin was slow, so the Bedouin lagged behind, and some people came to the Bedouin and began to bargain with him for the horse. They did not know that the Noble Prophet (peace and blessings be upon him) had already finalized the deal for the horse with him. Until someone offered the Bedouin a higher price than what the Noble Prophet (peace and blessings be upon him) had agreed upon. The Bedouin called out to the Noble Prophet (peace and blessings be upon him): If you want to buy this horse, then buy it, otherwise I am selling it to someone else. When the Noble Prophet (peace and blessings be upon him) heard the Bedouin’s voice, he stopped and said: Did I not already buy this horse from you? He said: By Allah, no, I have not sold it to you. The Noble Prophet (peace and blessings be upon him) said: Why not, I have already bought it from you. People gathered around the Noble Prophet (peace and blessings be upon him) and the Bedouin, and they were talking among themselves, when the Bedouin said: If you are truthful, then present a witness who will testify that I sold this horse to you. At that moment, a Muslim stepped forward and said to the Bedouin: Woe to you, the Noble Prophet (peace and blessings be upon him) always speaks the truth, he does not lie. Then Sayyiduna Khuzaymah (may Allah be pleased with him) arrived and heard the conversation between the Noble Prophet (peace and blessings be upon him) and the Bedouin. The Bedouin was saying: Present a witness who will testify that I sold this horse to you. Sayyiduna Khuzaymah (may Allah be pleased with him) said: I testify that you have sold this horse to the Noble Prophet (peace and blessings be upon him). The Noble Prophet (peace and blessings be upon him) turned to Sayyiduna Khuzaymah (may Allah be pleased with him) and said: On what basis are you giving this testimony? He said: O Messenger of Allah! On the basis of your truthfulness, for you always speak the truth. So the Noble Prophet (peace and blessings be upon him) considered the testimony of Sayyiduna Khuzaymah (may Allah be pleased with him) alone as equal to that of two witnesses.

Amarah bin Khuzaymah narrates from his uncle that Sayyiduna Khuzaymah bin Thabit Ansari (may Allah be pleased with him) saw in a dream that he prostrated on the forehead of the Messenger of Allah (peace and blessings be upon him). When he mentioned this dream to the Noble Prophet (peace and blessings be upon him), the Messenger of Allah (peace and blessings be upon him) lay down before him and said: "Fulfill your dream in this way." Thus, he prostrated on the forehead of the Messenger of Allah (peace and blessings be upon him).

It is narrated from Sayyiduna Zayd bin Thabit (may Allah be pleased with him) that when the manuscripts of the Noble Qur’an were being written, I lost track of one verse. I myself used to hear this verse from the Messenger of Allah (peace and blessings be upon him), but I could not find it written with anyone. Eventually, I found it written with Sayyiduna Khuzaymah Ansari (may Allah be pleased with him). That verse was: {مِنَ الْمُؤمِنِیْنَ رِجَالٌ صَدَقُوْا مَاعَاہَدُوا اللّٰہَ عَلَیْہِ فَمِنْھُمْ مَنْ قَضٰی نَحْبَہٗ وَمِنْھُمْ مَّنْ یَّنْتَظِرُ وَمَا بَدَّلُوْا تَبْدِیْلًا۔} … Among the believers are men who have been true to their covenant with Allah; some of them have fulfilled their vow, and some of them are still waiting, but they have never changed (their commitment) in the least. (Surah Al-Ahzab: 23) Sayyiduna Khuzaymah (may Allah be pleased with him) was called Dhu’sh-Shahadatayn, meaning“the possessor of two testimonies.”The Messenger of Allah (peace and blessings be upon him) considered his single testimony equal to two testimonies. Zuhri says that he was martyred at the time of Siffin in the company of Sayyiduna Ali (may Allah be pleased with him).