Abdullah bin Abi Bakr bin Muhammad bin Amr bin Hazm states: We were sitting with him when mention was made of the first child born among the Ansar after the arrival of the Messenger of Allah (peace and blessings be upon him) in Madinah. He said that it was al-Nu'man bin Bashir, who was born a year and a few days, or a little less than a year, after the Messenger of Allah (peace and blessings be upon him) arrived in Madinah. Then the people mentioned Abdullah bin Abi Talhah, and he said that Sayyidah Umm Sulaym (may Allah be pleased with her) was pregnant with him on the day of the Battle of Hunayn, and he was born after the return to Madinah.