Muwatta Malik:Divorce:Hadith 1298
وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ سَعِيدَ بْنَ الْمُسَيَّبِ، وَسُلَيْمَانَ بْنَ يَسَارٍ، سُئِلاَ عَنْ طَلاَقِ السَّكْرَانِ، فَقَالاَ إِذَا طَلَّقَ السَّكْرَانُ جَازَ طَلاَقُهُ وَإِنْ قَتَلَ قُتِلَ بِهِ ‏.‏ قَالَ مَالِكٌ وَعَلَى ذَلِكَ الأَمْرُ عِنْدَنَا ‏.‏

Yahya related to me from Malik that he had heard that Said ibn al-Musayyab and Sulayman ibn Yasar were asked about a man who divorced when he was drunk. They said, “When a drunk man divorces, his divorce is allowed. If he kills, he is killed for it.”

Malik said, “That is what is done among us.”