وَعَنْ خُزَيْمَةَ بْنِ ثَابِتٍ
أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «إِنَّ اللَّهَ لَا يستحيي مِنَ الْحَقِّ لَا تَأْتُوا النِّسَاءَ فِي أَدْبَارِهِنَّ»
The Prophet (sallallahu alayhi wa sallam) said:, “God is not ashamed of the truth. Do not have intercourse with women through the anus.”
Mishkat al-Masabih 3065, Book 14, Marriage, Hadith 110. 1 min read