Surah Al-A'raf, ayah 205

7:205

وَٱذۡكُر رَّبَّكَ فِي نَفۡسِكَ تَضَرُّعٗا وَخِيفَةٗ وَدُونَ ٱلۡجَهۡرِ مِنَ ٱلۡقَوۡلِ بِٱلۡغُدُوِّ وَٱلۡأٓصَالِ وَلَا تَكُن مِّنَ ٱلۡغَٰفِلِينَ ٢٠٥

Wadhkur rabbaka fī nafsika tadarru'an wakhīfatan wadūnal-jahri minal-qawli bil-ghuduwwi wal-āsāli walā takum minal-ghāfilīn

And remember your Lord within yourself in humility and in fear without being apparent in speech - in the mornings and the evenings. And do not be among the heedless.