Hadith 10:112
He reported God’s Messenger as saying, “God will not look at him who has intercourse with his wife through her anus.” It is transmitted in Sharh as-sunna .
وَعَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «إِنَّ الَّذِي يَأْتِي امْرَأَتَهُ فِي دُبُرِهَا لَا يَنْظُرُ اللَّهُ إِلَيْهِ» . رَوَاهُ فِي شرح السّنة
Original Reference: Mishkat al-Masabih 3194