يَـٰٓأَيُّهَا ٱلرُّسُلُ كُلُوا مِنَ ٱلطَّيِّبَـٰتِ وَٱعْمَلُوا صَـٰلِحًا ۖ إِنِّى بِمَا تَعْمَلُونَ عَلِيمٌ

Religion is originally one, and the same religion was taught to all the prophets. Religion enhances man spiritually so that he may discover God as an Almighty Being. His mind and soul should be imbued with the idea of the one God, Who is watching his every move, and after his death will take a reckoning of all his deeds. This realization (ma‘rifah) is the real religion. As a man enters the fold of realization, he begins to adopt righteous and pious methods in all his affairs. The realization of God essentially results in fear of God, and fear of God necessarily results in a pious life.

— Source: Tazkirul Quran (Maulana Wahiduddin Khan) via Quran.com (23:51)