Muwatta Malik 1174
Divorce
وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ رَجُلاً، سَأَلَ الْقَاسِمَ بْنَ مُحَمَّدٍ وَسُلَيْمَانَ بْنَ يَسَارٍ عَنْ رَجُلٍ تَظَاهَرَ مِنِ امْرَأَتِهِ قَبْلَ أَنْ يَنْكِحَهَا فَقَالاَ إِنْ نَكَحَهَا فَلاَ يَمَسَّهَا حَتَّى يُكَفِّرَ كَفَّارَةَ الْمُتَظَاهِرِ .
Yahya related to me from Malik that he had heard that a man asked al-Qasim ibn Muhammad and Sulayman ibn Yasar about a man who pronounced dhihar from his wife before he had married her. They said, "If he marries her, he must not touch her until he has done the kaffara for pronouncing dhihar
Grading: Salim al-Hilali: Maqtu Daif
Text from the public-domain hadith-api dataset. Numbering follows that dataset and can differ by a few from some printed editions — check the wording, not only the number.