Qulid'ul laaha awid'ur Rahmaana ayyam maa tad'oo falahul asmaaa'ul Husnaa; wa laa tajhar bi Salaatika wa laa tukhaafit bihaa wabtaghi baina zaalika sabeela
Say to them (O Prophet!): "Call upon Him as Allah or call upon Him as al-Rahman; call Him by whichever name you will, all His names are beautiful. Neither offer your Prayer in too loud a voice, nor in a voice too low; but follow a middle course."