Sunan an-Nasa'i 3516

It was narrated from Abu Salamah bin 'Abdur-Rahman that Zainab bint Abi Salamah told him, from her mother, Umm Salamah, the wife of the Prophet:"That a woman from Aslam who was called Subai'ah was married to her husband, and he died while she was pregnant. Abu As-Sanabil bin Ba'kak proposed to her but she refused to marry him. He said: 'You cannot get married until you have observed 'Iddah for the longer of the two periods.' Approximately twenty days later she gave birth. She went to the Messenger of Allah and he said: 'Get married