Al A'raf, 205 Ayah
7:205
وَٱذۡكُر رَّبَّكَ فِي نَفۡسِكَ تَضَرُّعٗا وَخِيفَةٗ وَدُونَ ٱلۡجَهۡرِ مِنَ ٱلۡقَوۡلِ بِٱلۡغُدُوِّ وَٱلۡأٓصَالِ وَلَا تَكُن مِّنَ ٱلۡغَٰفِلِينَ ٢٠٥
Wa Adhkur Rabbaka Fī Nafsika Tađarru`āan Wa Khīfatan Wa Dūna Al-Jahri Mina Al-Qawli Bil-Ghudūwi Wa Al-'Āşāli Wa Lā Takun Mina Al-Ghāfilīna
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.