It is narrated from Sayyidah Aishah (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) performed i'tikaf, and one of his wives also performed i'tikaf with him (peace and blessings be upon him) while she had prolonged bleeding (istihadah). She would see blood, and sometimes she would place a large basin beneath herself because of the blood. (b) The narrator claimed that Sayyidah Aishah (may Allah be pleased with her) saw water coloured with safflower and said: This is like what so-and-so used to experience.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحيض / 1560