768. hadíth
ومن خطبة له (عليه السلام)
Advice for observing courtesy and kindness and keeping in and out of the same
Nahj al-Balāgha
al-Sharīf al-Raḍī
Sermons
Observing courtesy and kindness, the autocracy of the Umayyads
A fordítás angol nyelvű (Sayed Ali Raza), forrás: Thaqalayn.net.