The Peak of Eloquence · Hadith 1841 (#Passage #200)

١٥٥. وَقَالَ (عليه السلام): اعْتَصِمُوا بِالذِّمَمِ فِي أَوْتَادِهَا.

155. Amīr al-mu’minīn, peace be upon him, said: Adhere to contracts and entrust their fulfilment to steadfast persons.

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