قُلِ ادعُوا اللَّهَ أَوِ ادعُوا الرَّحمـٰنَ ۖ أَيًّا ما تَدعوا فَلَهُ الأَسماءُ الحُسنىٰ ۚ وَلا تَجهَر بِصَلاتِكَ وَلا تُخافِت بِها وَابتَغِ بَينَ ذٰلِكَ سَبيلًا

Say, “Call upon God, or call upon the Most Merciful. Whichever you call upon Him with, for Him are the most beautiful names.” And don’t be loud in your prayer nor quiet in it, but seek a way in between.