(a) Sayyidah Aishah (may Allah be pleased with her) says that the husband of a woman with prolonged bleeding (istihadah) should not have intercourse with her.
(b) It is narrated from al-Sha'bi (may Allah have mercy on him) that the husband of a woman with prolonged bleeding should not have intercourse with her.
(c) Mu'adh bin Mu'adh narrated it from Shu'bah and separated the words of al-Sha'bi from the words of Sayyidah Aishah (may Allah be pleased with her).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحيض / 1563