The Peak of Eloquence · Hadith 2253 (#Passage #612)

٤٧٩. وَقَالَ (عليه السلام): شَرُّ الْإِخْوَانِ مَنْ تُكُلِّفَ لَهُ.

479. Amīr al-mu’minīn, peace be upon him, said: The worst comrade is he for whom formality has to be observed. [1]

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).