وَاذْكُر رَّبَّكَ فِي نَفْسِكَ تَضَرُّعاً وَخِيفَةً وَدُونَ الْجَهْرِ مِنَ الْقَوْلِ بِالْغُدُوِّ وَالآصَالِ وَلاَ تَكُن مِّنَ الْغَافِلِينَ
And remember your Lord within yourself in humility and in reverence, without loudness in words, in the mornings and evenings. And do not be among the heedless.
” - Surat al-`Araf, 7:205