´It was narrated from 'Abdullah that he issued a divorce to his wife when she was menstruating. So 'Umar went to inform the Prophet about that. The Prophet said to him:` "Tell 'Abdullah to take her back, then, when she has performed Ghusl, let him leave her alone, until she menstruates (again). Then, when she performs Ghusl following that second period, he should not touch her until he divorces her. And if he wants to keep her, then let him keep her. That is the time when Allah has stated that women may be divorced."
Hadith Referenceسنن نسائي / كتاب الطلاق / 3425
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:إسناده صحيح
´It was narrated from Ibn 'Umar that he divorced his wife while she was menstruating. He mentioned that to the Prophet and he said:` "Tell him to take her back, then divorce her while she is pure (not menstruating) or pregnant."
Hadith Referenceسنن نسائي / كتاب الطلاق / 3426
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح مسلم