Riyad as-Salihin
Riyad as-Salihin 868
Greeting Non-Muslims and the Prohibition of Taking Initiative in Doing So
Arabic hadith text
وعن أسامة رضي الله عنه أن النبي صلى الله عليه وسلم مر على مجلس فيه أخلاط من المسلمين والمشركين -عبدة الأوثان واليهود- فسلم عليهم النبي صلى الله عليه وسلم" ((متفق عليه)).
Translation
Usamah bin Zaid (May Allah be pleased with him) reported
The Prophet (ﷺ) passed by a mixed company of people which included Muslims, polytheists and Jews, and he gave them the greeting (i.e., saying As- Salamu 'Alaikum).[Al-Bukhari and Muslim].