What is the required number of menstrual cycles for *istibra'* of a woman capable of menstruation?
General Chapter
Al-Mughni
Book of Waiting Periods ('Iddah)
Primary text
The obligatory *istibra'* period for a pregnant woman is upon delivery without dispute. For one who menstruates, the requirement is one menstrual cycle according to the majority of scholars.
Supporting text
Sa'id ibn al-Musayyab and 'Ata' require two menstrual cycles, which contradicts the reported Hadith and the underlying purpose of ascertaining freedom from pregnancy, which is achieved after one cycle.