We have been told to remember the Almighty at all times in the following verse: وَأَصِيلًا وَسَبِّحُوهُ بُكْرَةًيَا أَيُّهَا الَّذِينَ آمَنُوا اذْكُرُوا اللَّهَ ذِكْرًا كَثِيرًا(33: 41-42) (O you who believe! Celebrate the praises of Allah, and do this often and glorify Him morning and evening, (33:41-42)). The best manner to remember the Almighty is through the prayer because it is in the prayer that a person’s whole body remembers the Almighty and he becomes a picture of this remembrance. Consequently, five prayers in a day have been made obligatory to maintain this remembrance in a person.
When the Prophet Moses (sws) was appointed a Prophet, he was told:
إِنِّي أَنَا رَبُّكَ فَاخْلَعْ نَعْلَيْكَ إِنَّكَ بِالْوَادِ الْمُقَدَّسِ طُوًى وَأَنَا اخْتَرْتُكَ فَاسْتَمِعْ لِمَا يُوحَى إِنَّنِي أَنَا اللَّهُ لَا إِلَهَ إِلَّا أَنَا فَاعْبُدْنِي وَأَقِمِ الصَّلَاةَ لِذِكْرِي
I am your Lord. Take off your shoes, for you are now in the sacred valley of T~uwā. And [be informed that] that I have chosen you for prophethood. Therefore listen to what shall be revealed. “I am God. Indeed, there is no god but Me. Serve Me, and for My remembrance pray with vigilance.” (20:12-14)