سُنَنُ ابْنِ مَاجَهْ
Sunan Ibn Majah 1924
The Chapters on Marriage
Prohibition of having intercourse with women in the buttocks
حَدَّثَنَا أَحْمَدُ بْنُ عَبْدَةَ، أَنْبَأَنَا عَبْدُ الْوَاحِدِ بْنُ زِيَادٍ، عَنْ حَجَّاجِ بْنِ أَرْطَاةَ، عَنْ عَمْرِو بْنِ شُعَيْبٍ، عَنْ عَبْدِ اللَّهِ بْنِ هَرَمِيٍّ، عَنْ خُزَيْمَةَ بْنِ ثَابِتٍ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " إِنَّ اللَّهَ لاَ يَسْتَحْيِي مِنَ الْحَقِّ " . ثَلاَثَ مَرَّاتٍ لاَ تَأْتُوا النِّسَاءَ فِي أَدْبَارِهِنَّ " .
It was narrated from Khuzaimah bin Thabit: That the Messenger of Allah (ﷺ) said: “Allah is not too shy to tell the truth,” three times. “Do not have intercourse with women in their buttocks.”
Sunan Ibn Majah, 1924Sahih (Darussalam)