Yahya related to me from Malik from Abd ar-Rahman ibn al-Qasim from his father from Asma bint Umays that she gave birth to Muhammad ibn Abi Bakr at al-Bayda. Abu Bakr mentioned this to the Messenger of Allah, may Allah bless him and grant him peace, and he said, "Tell her to do ghusl and then enter ihram

English translation · Muwatta Malik