The Peak of Eloquence · Hadith 1577 (#Passage #386)
Chapter 63 | To Abu Musa Ashaari, the governor of Kufa, when Ali learned that he discouraged jihad
وَاللهِ إِنَّهُ لَحَقٌّ مَعَ مُحِقٍّ، وَمَا أُبَالِي مَا صَنَعَ الْمُلْحِدُونَ، وَالسَّلَامُ.
By Allāh, this is the case of right with the rightful person and we do not care what the heretics do; and that is an end to the matter.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).