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.”
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 " .
Grade : Sahih (Darussalam)
English reference : Vol. 3, Book 9, Hadith 1924
Arabic reference : Book 9, Hadith 1999
http://sunnah.com/urn/1262430
Abu Huraira reported Allah's Messenger (may peace be upon him) as saying: Avoid suspicion, for suspicion is the gravest lie in talk and
do not be inquisitive about one another and do not spy upon one another and do not feel envy with the other, and nurse no malice, and nurse no aversion and hostility against one another. And be fellow-brothers and servants of Allah.
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