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.” (Using translation from Ibn Mājah 1924)
"إِنَّ الله لا يَسْتَحْيِى مِنَ الْحَقِّ. لا يَحِلُّ أَنْ تَأتُوا النِّسَاءَ فِي أَدْبارِهِنَّ ".