(At-Thagabun) 64 : 13
اللَّهُ لَا إِلَٰهَ إِلَّا هُوَ ۚ وَعَلَى اللَّهِ فَلْيَتَوَكَّلِ الْمُؤْمِنُونَ
Allah, there is no deity except He, and upon Allah then the believers may entrust.
See explanation 1: 4; 9: 51; 21: 24-25; and 39: 62-63.