Narrated Anas bin Seereen: Ibn `Umar said: I divorced my wife while she was menstruating. `Umar mentioned that to the Prophet . The Prophet said, (to my father), Let your son take her back. I asked (Ibn `Umar), Is such a divorce counted (i.e. as one legal divorce)? Ibn `Umar said, Of course. Narrated Yunus bin Jubair: Ibn `Umar said, The Prophet said to `Umar, 'Order him (Ibn `Umar) to take her back.' I asked, Is such a divorce counted (as one legal divorce)? Ibn `Umar said, What do you think if someone becomes helpless and foolish?