"The Prophet would say the Salam from his right and from his left (saying): (As-Salamu alaikum wa rahmatullah, as-Salamu alaikum wa rahmatullah) 'Peace be upon you, and Allah's mercy. Peace be upon you, and Allah's mercy.'"
Jami` at-Tirmidhi Book 2, Hadith 147
← Previous Hadith "When the Prophet would sit during the Salat, he would place his right hand on his knee, and raise his finger, the one that is next to the thumb, supplicating with it, and his left hand was spread flat on his left knee."

Jami` at-Tirmidhi Book 2, Hadith 146 Next Hadith → "Allah's Messenger would say one Taslim for the Salat while facing forward and turning to his right side a little."

Jami` at-Tirmidhi Book 2, Hadith 148