(1) باب مَا جَاءَ فِي طَلاَقِ السُّنَّةِ
Yunus bin Jubair said:
"I asked Ibn Umar about a man who divorced his wife while she was menstruating. So he said: 'Don't you know Abdullah bin Umar?' Indeed he divorced his wife while she was menstruating, so Umar asked the Prophet about that, and he ordered him to take her back.'" He said: "I said: And that divorce is counted? He said: And that divorce is counted? He said: 'What else would you think if he was helpless and foolish?'"
Reference: Jami` at-Tirmidhi 1175
In-book reference: Book 13, Hadith 1
English translation: Vol. 2, Book 8, Hadith 1175