The Sufficient (Vol 3) · Hadith 1382 (#Ḥadīth #6)
Chapter 43 | Facing Doubts about Salah (Prayer) As a Whole, Not Knowing if It Is Increased or Decreased, One Facing Mistakes Very Often, Mistakes in Optional Salah (prayer) and Mistakes of an Imam and Those behind Him
6ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ مُحَمَّدِ بْنِ عِيسَى عَنْ يُونُسَ عَنِ الْعَلاَءِ بْنِ رَزِينٍ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ عَنْ أَحَدِهِمَا (عَلَيْهِما الْسَّلام) قَالَ سَأَلْتُهُ عَنِ السَّهْوِ فِي النَّافِلَةِ فَقَالَ لَيْسَ عَلَيْهِ شَيْءٌ.
6. Ali ibn Ibrahim has narrated from Muhammad ibn ‘Isa from Yunus fro, af-‘Ala’ ibn Razin from Muhammad ibn Muslim who has said the following: “I once asked one of the two Imam, ‘Alayhim al-Salam, about mistakes in optional Salah (prayer). He (the Imam) said, ‘There is not anything upon him.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).