Abu Dawud Book 2, Hadith Number 970.
Chapter : Not known.
Narated By Samurah ibn Jundub : The Apostle of Allah (PBUH) commanded us (to recite) when we sit in the middle of the prayer or at its end before the salutation: The adorations of the tongue, all good things, acts of worship, and the Kingdom are due to Allah. Then give salutation to the right side; then salute your reciter (i.e. the imam) and yourselves.