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

Question:
Is it prescribed to say "As-salamu alaykum wa rahmatullahi wa barakatuh" in the taslim of the prayer, or not?

Answer:
"As-salamu alaykum wa rahmatullah" is what is mentioned in the many narrations. As for adding "wa barakatuh," this was mentioned in some narrations. However, the practice is to say "As-salamu alaykum wa rahmatullah." Yes.