Punishment of homosexual relations
Thawāb al-Aʿmāl wa ʿiqāb al-Aʿmāl|Volume 1|Book 3|Chapter 112
وَ قَالَ ع قَالَ أَمِیرُ الْمُؤْمِنِینَ ع اللِّوَاطُ مَا دُونَ الدُّبُرِ فَهُوَ لِوَاطٌ وَ الدُّبُرُ هُوَ الْکُفْرُ.
4. It is also narrated that Amirul Momineen عليه السلام said, “If it is done outside anus, it is called sodomy and if it is inside it, it is disbelief.”