Is it permissible to write (ص) or (صلعم) as an abbreviation?

Question:
The listener (N. A.) from the Sudair region sent a message containing three questions. In her first question, she says: Some people, when they write the name of the noble Messenger (peace and blessings be upon him), place the letter Sad in place of the prayer upon him—(may the best of prayers and peace be upon him)—is what they are doing correct?

Answer:
No, this is not appropriate. Rather, it is prescribed that they pray upon him (peace and blessings be upon him) with a written prayer (peace and blessings be upon him). Some of them write (صلعم)—Sad, Lam, Ayn, Mim—as a reference to (peace and blessings be upon him), and this is also an error and not appropriate. The scholars have warned about this. The Sunnah for one who speaks his name (peace and blessings be upon him) or writes it is to pray upon him (peace and blessings be upon him) explicitly, saying: (peace and blessings be upon him), and not to place (ص) or (صلعم) in its place. Yes.

The presenter: May Allah reward you with good.