Imam Ja‘far al-Ṣadiq (as): Stay away from three types of people: a treacherous person, a wrong-doer, and a talebearer, because he who betrays in your favor will someday betray you, he who wrongs others for you will eventually wrong you, and he who informs you on others will someday inform against you. Tuḥaf al-‘Uqūl