Sayyidah Aisha (RA) narrated; ‘A company of Jews visited the Prophet (SAW) and said, ‘As-saam alayk’ The Prophet (SAW) said, “Wa alayk.” [Their words meant ‘death to you’ and the Prophet (SAW) said ‘same to you’]. I said to them, “Death to you all and the curse.” So the Prophet (SAW) said, “O Aisha, Allah loves mildness in affairs, all of them.” I asked, “Did you not hear what they said?” He said, “Indeed I responded with (on you, what you say).”
[Bukhari 6356,Muslim 2165, Ibn e Majah 3698,Ahmed 24145]