The Sufficient (Vol 3) · Hadith 320 (#Ḥadīth #3)
Chapter 45 | Bandages, Injuries, One’s Suffering from Smallpox and or Experiencing Carnal Relations
3ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ أَحْمَدَ رَفَعَهُ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) قَالَ سَأَلْتُهُ عَنْ مَجْدُورٍ أَصَابَتْهُ جَنَابَةٌ قَالَ إِنْ كَانَ أَجْنَبَ هُوَ فَلْيَغْتَسِلْ وَإِنْ كَانَ احْتَلَمَ فَلْيَتَيَمَّمْ.
3. A number of our people have narrated from Ahmad ibn Muhammad from Muhammad ibn Ali from Ahmad who in a marfu‘ manner has said the following: “I once asked abu ‘Abd Allah , about one with a condition of smallpox who experiences sexual relation. He (the Imam) said, ‘If one has experienced sexual relation, he must take Ghusl (bath), but if it is wet dream, there is Tayammum for it.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).