Sunan an-Nasa'i 3542

Al-'Abbas bin Muhammad—Ad-Duri—narrated to us: Al-Aswad bin 'Amir narrated to us, from Za'idah, from Hisham, from Hafsah, from Umm 'Atiyyah, from the Prophet, that he granted a concession to a woman whose husband had died, allowing her to use qust and azfar when she purified herself after menstruation.