Chapter on Rules of Janabah and Methods of Purification
Tahdhīb al-Aḥkām|Volume 1|Book 1|Chapter 6
عَنْهُ عَنْ مُحَمَّدِ بْنِ إِسْمَاعِيلَ قَالَ سَأَلْتُ الرِّضَا عَلَيْهِ السَّلَامُ عَنِ الرَّجُلِ يُجَامِعُ الْمَرْأَةَ فِيمَا دُونَ الْفَرْجِ وَتَنْزِلُ الْمَرْأَةُ، هَلْ عَلَيْهَا غُسْلٌ؟ قَالَ نَعَمْ
From him, from Muhammad ibn Isma'il, who said:
I asked al-Ridha عليه السلام about a man engaging in intimacy with a woman without penetration, and the woman ejaculates. Does she need to perform ghusl? Imam عليه السلام replied: Yes.
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 131
- Ṣaḥīḥ al-Tahdhīb