´It was narrated from Abu 'Abdur-Rahman Al Juhani that the Messenger of Allah(ﷺ) said:` "I am riding to the Jews tomorrow. Do not initiate the greeting with them, and if they greet you, then say: Wa 'alaikum (and also upon you)".
Explanation & Benefits
Maulana Ataullah Sajid
Benefits and Issues:
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In the lands of the Muslims, non-Muslims should be made to feel that they do not have the same status as Muslims, so that they do not dare to harass Muslims and so that they perceive their own betterment in accepting Islam.
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Muslims should not greet non-Muslims with salam; rather, it is the non-Muslim who should greet the Muslim with salam, and then the Muslim should respond.
Source: Commentary on Sunan Ibn Mājah by Mawlānā ‘Atā’ullāh Sājid, Page: 3699