The Peak of Eloquence · Hadith 1647 (#Passage #6)

٦. وَقَالَ (عليه السلام): صَدْرُ الْعَاقِلِ صُنْدُوقُ سِرِّهِ وَالْبَشَاشَةُ حِبَالَةُ الْمَوَدَّةِ وَالِاحْتِمَالُ قَبْرُ الْعُيُوبِ.

6. Amīr al-mu’minīn, peace be upon him, said: The bosom of the wise is the safe of his secrets; cheerfulness is the bond of friendship; effective forbearance is the grave of short-comings.

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