بِسْمِ اللهِ، تَوَكَّلْتُ عَلَى اللهِ، وَلاَحَوْلَ وَلَا قُوَّةَ إِلَّا بِاللهِ

In the name of Allāh, I place my trust in Allāh, and there is no might nor power except with Allāh.

Referencia: Abū Dāwud (#5094, 4/325) and al-Tirmidhī (#3427, 5/490). See Ṣaḥīḥ al-Tirmidhī (3/151).