The Sufficient (Vol 4) · Hadith 417 (#Ḥadīth #3)
Chapter 28 | The Case of a Fasting Person’s Use of Bath Room and Apply Cupping
3ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ الْحَكَمِ عَنِ الْعَلاءِ بْنِ رَزِينٍ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ عَنْ أَبِي جَعْفَرٍ (عَلَيْهِ السَّلاَم) أَنَّهُ سُئِلَ عَنِ الرَّجُلِ يَدْخُلُ الْحَمَّامَ وَهُوَ صَائِمٌ فَقَالَ لا بَأْسَ مَا لَمْ يَخْشَ ضَعْفاً.
3. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Ali ibn al-Hakam from al-‘Ala’ ibn Razin from Muhammad ibn Muslim who has said the following: “I once asked abu Ja‘far , about a man who uses the bathhouse when fasting. He (the Imam) said, ‘It is not harmful as long as he is not afraid of becoming weak.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).