It is narrated from Mus'ab bin Abdullah that Sayyidah Busrah bint Safwan (may Allah be pleased with her) was the maternal half-sister of Uqbah bin Abi Mu'ayt and the maternal grandmother of Abd al-Malik bin Marwan; the mother of Abd al-Malik was Aishah bint Mu'awiyah bin al-Mughirah bin Abi al-As bin Umayyah. She lived on after the Messenger of Allah (peace and blessings be upon him), and the hadith narrated from her about ablution after touching the private part is very well known.