Sahih al-Bukhari 3737

It is related from the client of Usama ibn Zayd that Al-Hajjaj ibn Ayman was the son Umm Ayman, and Ayman ibn Umm Ayman was the brother of Usama ibn Zayd by their mother and was a man of the Ansar. He was seen by Ibn 'Umar not doing a complete bowing and prostration and he told him, "Repeat it." It is related from Harmala, the client of Usama ibn Zayd that while he was with 'Abdullah ibn 'Umar, al-Hajjaj ibn Ayman ibn Umm Ayman entered and did not complete his bowing and prostration. He said, "Repeat it." When he turned away, Ibn 'Umar asked me, "Who is this?" I replied, "Al-Hajjaj ibn Ayman ibn Umm Ayman." Ibn 'Umar said, "If the Messenger of Allah, may Allah bless him and grant him peace, had seen this one, he would have loved him." Then he mentioned his love for the children of Umm Ayman." He said, "One of my companions related to me that she was the nurse of the Prophet, may Allah bless him and grant him peace."