Sunan an-Nasa'i 3399

Qutaybah narrated to us; Hammad narrated to us, from Ayyub, from Muhammad, from Yunus bin Jubayr, who said: I asked Ibn Umar about a man who divorced his wife while she was menstruating. He said, ‘Do you know Abdullah bin Umar? He divorced his wife while she was menstruating, and Umar asked the Prophet about it. He ordered him to take her back and then begin counting her waiting period anew.’ I asked him, ‘Does he count that divorce?’ He replied, ‘Enough! What do you think if he were incapable and acted foolishly?’