Islamic teachings explain how women should purify themselves following menses and nifas (postpartum bleeding). Some women suffer from menses that last longer than the usual time, and they bleed heavily for longer than the days of the usual period. Islam makes things easier for them in that case. In this hadith, ‘A’ishah (may Allah be pleased with her) tells us that the Prophet (blessings and peace of Allah be upon him) observed i‘tikaf in his mosque, isolating himself from people for the purpose of worship, and one of his wives observed i‘tikaf with him. It was said that she was Sawdah bint Zam‘ah, or that she was Ramlah Umm Habibah bint Abi Sufyan, or that she was Zaynab bint Jahsh. She was suffering from istihadah and was bleeding; istihadah is irregular bleeding that a woman experiences after the end of her normal menses. The blood of istihadah is thin and is not like menstrual blood. Sometimes she would put a basin – meaning a large vessel – beneath her to catch this copious bleeding, lest it contaminate her garment or the mosque. Khalid ibn Mihran, one of the narrators of this hadith, said regarding the phrase “he claimed”: The word claim may refer to something that one is certain about, even though it is most often used with regard to something one is uncertain about, or to suggest that it is false. ‘Ikrimah claimed that ‘A’ishah (may Allah be pleased with her) saw some safflower water – which comes from a kind of plant and is yellow in colour; it is used as a dye but does not have a fragrance – and said: This yellow is something that resembles what So-and-so used to see at the time of her istihadah. This indicates that the blood of istihadah may be yellow and thin, and is not dark like menstrual blood. This hadith indicates that a woman who is suffering from istihadah may observe i‘tikaf if she is certain that her bleeding will not contaminate the mosque..