The ruling on abbreviating the salutation upon the Messenger (peace and blessings be upon him) with the letter "S" or "Sallam"
Machine translationRead the Arabic original
Question:
May Allah reward you. This is a woman from Dammam asking: When mentioning the Messenger and writing, we write "S" or "Sallam." Is this permissible, Honorable Shaykh?
Answer:
This is not permissible. It is not permissible to write "S" or "Sallam"; rather, one should say "Sallallahu alayhi wa sallam." Yes.
May Allah reward you. This is a woman from Dammam asking: When mentioning the Messenger and writing, we write "S" or "Sallam." Is this permissible, Honorable Shaykh?
Answer:
This is not permissible. It is not permissible to write "S" or "Sallam"; rather, one should say "Sallallahu alayhi wa sallam." Yes.
Source
قناة «العلامة الدكتور صالح الفوزان»، 6480- حكم اختصار الصلاة على الرسول ﷺ بحرف "ص" أو "صلعم" - الشيخ صالح الفوزان — youtube.com
The Arabic text is a machine transcription of the audio recording.