Qur'ān 17:96 · Al-Isra (الإسراء)

قُلْ كَفَىٰ بِٱللَّهِ شَهِيدًۢا بَيْنِى وَبَيْنَكُمْ ۚ إِنَّهُۥ كَانَ بِعِبَادِهِۦ خَبِيرًۢا بَصِيرًۭا

Say, "Sufficient is Allah as Witness between me and you. Indeed he is ever, concerning His servants, Acquainted and Seeing."