The ruling on adding “and His blessings” to the closing salam of the prayer

Question:
May Allah reward you. Honorable Shaykh, this questioner says: Is it permissible for us to add to our salam from the prayer and say, “Peace be upon you, and Allah’s mercy and His blessings”?

Answer:
This has been reported, but the common practice is to say, “Peace be upon you, and Allah’s mercy.” As for “and His blessings,” this was reported in some narrations, but the practice is to follow the other versions, and a person does not follow anomalous narrations.