Salaam.
In 20:14 we see that the purpose, aim and object of Salaath is zikr (remembrance of Allah).
In 2:239, and 62:9, zikr seems to be synonymous with Salaath.
In 17:78, Quran or its recital seems to be synonymous with Salaath.
Whether we utter the word Allah, or Al Rahmaan, or call Him by any other suitable name in any language whatsoever, or we remember Him secretly in our hearts, or we use any suitable phrase or sentence in any language whatsoever while mentioning Him, where is the command against such acts in the Qur’an?
Of course, whenever there is the slightest doubt, or dispute, Qur’an is the only authority.
Regards,
A. Ismail Sait.