The ruling on saying: “Peace be upon those who follow the guidance”

Question:
May Allah reward you. This questioner says: Honorable Shaykh, does spreading the salam by saying suffice?

Answer:
This does not suffice for a Muslim; this is for a disbeliever. If you write to him, you say , if you want to invite him to Allah, as the Prophet (peace and blessings be upon him) used to write to the leaders of the disbelievers and say , as he wrote to Kisra and Caesar. But if you write to a Muslim, you say, “Peace be upon you, and the mercy of Allah and His blessings.” Yes.