Do not say As-Salam (Peace and Security) upon Allah
It is reported in As-Sahih (Al-Bukhari) and Muslim from Ibn Mas‘ud (R.A.), He said:
Whenever we offered Salat (prayer) behind the Prophet (SAW), we used to recite (in sitting) “As-Salam (the peace) be on Allah from His slaves. As-Salam (the peace) be on such and such people.”
The Prophet (SAW) guided us by saying:
“Do not say ‘As-Salaam ‘ala-Allah----the peace be on Allah,’ for Allah Himself is As-Salaam (the peace).”
Important issues of the Chapter
1) Explanation of As-Salam (the peace).
2) As-Salam (the peace) is a greeting or salutation.
3) As-Salam is not proper to use for Allah.
4) The reason being Allah Himself is As-Salam (the peace).
5) The Prophet (SAW) taught the Companions (R.A.), the invocation in the way it should be offered to Allah.