Mishkat al-Masabih #3066
Marriage
The Arabic includes the chain of narration (sanad) and the collector's commentary; the English translation shows the Prophet's words only.
وَعَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «إِنَّ الَّذِي يَأْتِي امْرَأَتَهُ فِي دُبُرِهَا لَا يَنْظُرُ اللَّهُ إِلَيْهِ» . رَوَاهُ فِي شرح السّنة
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.
About Mishkat al-Masabih
This hadith is #3066 from Mishkat al-Masabih, in the Book of Marriage.