Nahj al-Balāgha

Hadith 1625
governance
ومن حلف له (عليه السلام) كتبه بين ربيعة واليمن، نقل من خط هشام بن الكلبي
Written by Amīr al-mu’minīn as a protocol between the tribes of Rabī‘ah and the people of Yemen. Taken from the writing of Hishām ibn (Muḥammad) al-Kalbī.
Source: al-Sharīf al-Raḍī