The Peak of Eloquence · Hadith 1462 (#Passage #271)

ومن كتاب له (عليه السلام) إلى أمراء البلاد في معنى الصلاة

To the Governors of various places concerning prayers

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