Ghusl for Menstruation and Postpartum
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 21
وَ سُئِلَ مُوسَى بْنُ جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ: عَنْ رَجُلٍ اِشْتَرَى جَارِيَةً فَمَكَثَتْ عِنْدَهُ أَشْهُراً لَمْ تَطْمَثْ وَ لَيْسَ ذَلِكَ مِنْ كِبَرٍ وَ ذَكَرَ اَلنِّسَاءُ أَنَّهُ لَيْسَ بِهَا حَبَلٌ هَلْ يَجُوزُ أَنْ تُنْكَحَ فِي اَلْفَرْجِ فَقَالَ «إِنَّ اَلطَّمْثَ قَدْ تَحْبِسُهُ اَلرِّيحُ مِنْ غَيْرِ حَبَلٍ فَلاَ بَأْسَ أَنْ يَمَسَّهَا فِي اَلْفَرْجِ.
Imam Musa ibn Jafar Al-Kadhim عليه السلام was asked about a man who purchased a female slave who stayed with him for months without menstruating, and this was not due to age, and it was mentioned by women that She was not pregnant. He asked whether it was permissible to have intercourse with her in this state. Imam عليه السلام said: "The lack of menstruation may sometimes be caused by a blockage of wind, not necessarily due to pregnancy. Therefore, there is no problem in engaging with her in that way."
- Ṣaḥīḥ al-Faqīh