Names
Say, “Call upon Allah or call upon the Most Merciful, whichever name you use, His are the finest names.” Do not be loud in your prayer, nor too quiet, but seek a middle way.
17:110Say (unto mankind): Cry unto Allah, or cry unto the Beneficent, unto whichsoever ye cry (it is the same). His are the most beautiful names. And thou (Muhammad), be not loud-voiced in thy worship nor yet silent therein, but follow a way between.