Al-Kāfi - The Book of Marriage

Al-Kāfi - The Book of Marriage َّدُ بْنُ يَحْيَى عَنْ أَحْ٠َّدٍ عَنْ عَلِيِّ بْنِ الْحَكَ٠ِعْتُ صَفْوَانَ بْنَ يَحْيَى يَقُولُ قُلْتُ لِلرِّضَا (عَلَيْهِ السَّلا٠َرَنِي أَنْ أَسْأَلَكَ عَنْ ٠َسْأَلَةٍ هَابَكَ وَاسْتَحْيَا ٠ِنْكَ أَنْ يَسْأَلَكَ قَالَ وَ٠َا هِيَ قُلْتُ الرَّجُلُ يَأْتِي ا٠ْرَأَتَهُ فِي دُبُرِهَا قَالَ ذَلِكَ لَهُ قَالَ قُلْتُ لَهُ فَأَنْتَ تَفْعَلُ قَالَ إِنَّا لا نَفْعَلُ ذَلِكَ.

He (the Imam) asked, ‘What is the question?’ I asked, ‘Can a man come to his wife in her anus?’ He (the Imam) said, ‘It is up to him.’ I then asked, ‘Do you do so?’ He (the Imam) said, ‘No, we do not do so.’” صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (0/383))