Musannaf Ibn Abi Shaybah 35791 — A man writing to the People

Mansur (may Allah have mercy on him) said: I asked Ibrahim (may Allah have mercy on him) and Mujahid (may Allah have mercy on him) how one should write to the ahl al-dhimmah. Mujahid said: Write to them: 'As-salamu ala man ittaba'a al-huda' (Peace be upon whoever follows the guidance). And Ibrahim said: He should write: 'Salamun alayk' (Peace be upon you).