عَنِ ابْنِ عَبَّاسٍ قَالَ: أُوحِيَ إِلَى رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: (نساوكم حرث لكم فَأتوا حَرْثكُمْ) الْآيَةَ: «أَقْبِلْ وَأَدْبِرْ وَاتَّقِ الدُّبُرَ وَالْحَيْضَةَ» . رَوَاهُ التِّرْمِذِيّ وَابْن مَاجَه

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.