Musannaf Ibn Abi Shaybah 3076 — Those who used to give two salams

Sayyiduna Wa'il bin Hujr (may Allah be pleased with him) said: I prayed behind the Prophet (peace and blessings be upon him). When he recited Surah al-Fatihah, he said Amin aloud, and at the end of the prayer he gave the salam to the right and to the left, until the whiteness of his blessed cheek could be seen.