110th Ayah from Surah Al Isra
Sahih International
Say, "Call upon Allah or call upon the Most Merciful. Whichever [name] you call - to Him belong the best names." And do not recite [too] loudly in your prayer or [too] quietly but seek between that an [intermediate] way.
Abdul Haleem
Say [to them], ‘Call on God, or on the Lord of Mercy- whatever names you call Him, the best names belong to Him.’ [Prophet], do not be too loud in your prayer, or too quiet, but seek a middle way
Mohsin Khan/Hilali
Say (O Muhammad SAW): "Invoke Allah or invoke the Most Beneficent (Allah), by whatever name you invoke Him (it is the same), for to Him belong the Best Names. And offer your Salat (prayer) neither aloud nor in a low voice, but follow a way between.
Taqi Usmani
Say, “Call (Him by the name of) Allah or Ar-RaHmān, in whichever way you call, His are the Best Names.” Do not be (too) loud in your Salāh, nor be (too) low in it, and seek a way in between.
Pickthall
Say (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.
Pickthall
Say: "Call upon Allah, or call upon Rahman: by whatever name ye call upon Him, (it is well): for to Him belong the Most Beautiful Names. Neither speak thy Prayer aloud, nor speak it in a low tone, but seek a middle course between."