The Peak of Eloquence · Hadith 1236 (#Passage #45)
Chapter 12 | To a contingent dispatched to engage the enemy
ومن وصية له (عليه السلام) لمعقل بن قيس الرياحي حين أنفذه إلى الشام في ثلاثة آلاف مقدّمةً له
Instructions given to Ma‘qil ibn Qays ar-Riyāḥī when he was dispatched to Syria at the head of a vanguard contingent three thousand strong.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).