Al-Adab Al-Mufrad #312

'A'isha reported that some Jews came to the Prophet, may Allah bless him and grant him peace, and said, "Poison ('sam' instead of 'salam') be upon you." 'A'isha said, "And upon you and may the curse of Allah and the anger of Allah be upon you!" The Prophet said, "Easy, 'A'isha, you must be gentle. Beware of harshness and coarseness." She asked, "Didn't you hear what they said?" He said, "Didn't you hear what I said? I repeated it to them and what I said about them will be accepted and what they said about me will not be accepted."