Al-Amālī

Hadith 1066
trustworthinessbrotherhood
9 - وقال الصادق (عليه السلام): لا تثقن بأخيك كل الثقة، فإن صرعة (3) الاسترسال لن تستقال (4).
Al-Sadiq (as) said to one of his companions: Do not give your brother all your trust, for prudence is unceasing.
Source: Shaykh Muḥammad b. ʿAlī al-Ṣaduq