The Sufficient (Vol 3) · Hadith 452 (#Ḥadīth #10)
Chapter 2 | The Reward for a Person Suffering from Illness
10ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ مُحَمَّدِ بْنِ الْحُسَيْنِ عَنِ الْحَكَمِ بْنِ مِسْكِينٍ عَنْ مُحَمَّدِ بْنِ مَرْوَانَ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) قَالَ حُمَّى لَيْلَةٍ كَفَّارَةٌ لِمَا قَبْلَهَا وَلِمَا بَعْدَهَا.
10. Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from al-Hakam ibn Miskin from Muhammad ibn Marwan who has said the following: “Abu ‘Abd Allah , has said that suffering from fever for one night is expiation (for the sins) before and thereafter.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).