Regarding The Salam — Sunan Abi Dawud 997

I prayed with the Prophet (ﷺ) and he would say the greeting of peace to his right: "As-salamu alaykum wa rahmatullahi wa barakatuh" (Peace be upon you, and the mercy of Allah and His blessings), and to his left: "As-salamu alaykum wa rahmatullah" (Peace be upon you, and the mercy of Allah).