Is it permissible to add "and His blessings" to the salam after the prayer?

Question:
He says: Honorable Shaykh, may Allah grant you success, some people say in their salam after the prayer, "Peace be upon you and Allah's mercy and His blessings." Is there a report of adding "and His blessings"?

Answer:
It has been reported, but it is not well known. The well-known form is "Peace be upon you and Allah's mercy." In fact, "Peace be upon you" alone has also been reported. There are many narrations, but the standard is the well-known one, which is what is practiced. Yes.