Contentment as inexhaustible wealth
Nahj al-Balāgha|Volume 1|Book 3|Chapter 57
قال السيد الرضي: وقد روي هذا الكلام عن النبي صلي الله عليه وآله وسلم.
As-Sayyid ar-Raḍī says: This saying has also been related from the Prophet, may Allāh bless him and his descendants.