Sayyiduna Ibn Umar (may Allah be pleased with them both) narrates that the Noble Prophet (peace and blessings be upon him) said: When the Jews greet you, they say "As-Saam Alaikum" (death be upon you) instead of "As-Salaam Alaikum" (peace be upon you), so you should also reply with "Wa Alaikum" (and upon you).

Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) said: When the People of the Book greet you with salam, then in reply you should say, "Wa 'alaykum."

Narrated from Sayyiduna Anas (may Allah be pleased with him) that a Jew came to the Noble Prophet (peace and blessings be upon him) while he was sitting with his companions, and he said: "As-Saam Alaikum (death be upon you)." The people replied to him, but the Messenger of Allah (peace and blessings be upon him) said to him: "Did you say such and such?" He said: "Yes." Then the Prophet (peace and blessings be upon him) said: "When any of the People of the Book greet you, then you should only say 'Alaika (upon you).' That is, whatever you said, the same be upon you."

It is narrated from Sayyiduna Anas (may Allah be pleased with him), he says: A man from among the People of the Book came and greeted the Noble Prophet (peace and blessings be upon him) saying: "As-Saam ‘alaykum" (death be upon you). Sayyiduna ‘Umar (may Allah be pleased with him) said: O Messenger of Allah! Shall I not strike off his neck? The Prophet (peace and blessings be upon him) said: No, just when these people greet you, respond to them by saying: "Wa ‘alaykum" (and upon you).

Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates that the Jews came to the Prophet Muhammad (peace and blessings be upon him) and said: "Death be upon you." The Prophet Muhammad (peace and blessings be upon him) also replied with the same words, saying: "Death be upon you." But Lady Aisha (may Allah be pleased with her) said: "O brothers of apes and swine! May death and destruction befall you, and may the curse and wrath of Allah descend upon you." The Prophet (peace and blessings be upon him) said: "O Aisha! Stop." She said: "O Messenger of Allah! Did you not hear what they said?" The Prophet (peace and blessings be upon him) said: "Aisha! Did you not hear what I replied to them? Gentleness, wherever it is found, adorns it, and wherever gentleness is removed from something, it makes it defective." In another narration, it is stated: "Indeed, Allah loves gentleness in every matter."

Lady Aisha (may Allah be pleased with her) narrates that some Jews came to the Messenger of Allah (peace and blessings be upon him) and said: "As-Saam-u Alaik" (death be upon you). The Prophet (peace and blessings be upon him) replied: "Alaikum" (upon you too). But Lady Aisha (may Allah be pleased with her) said: "Upon you be the curse of Allah, rather, the curse of all those who curse be upon you." They said: "O Aisha! Your father was not so harsh in speech." When they left, the Noble Prophet (peace and blessings be upon him) asked Lady Aisha (may Allah be pleased with her): "What made you use such harsh words?" She said: "O Messenger of Allah! Did you not hear what those Jews said?" The Prophet (peace and blessings be upon him) said: "Did you not see that I also replied 'Alaikum'? Whatever curse I invoke upon them will reach them, but whatever curse they invoke upon me will not reach me."

Lady Aisha (may Allah be pleased with her) narrates that a Jew came to the Messenger of Allah (peace and blessings be upon him) and said (instead of saying "As-salamu Alaikum"): "O Muhammad! As-samu Alaikum" (meaning: death and destruction be upon you). The Prophet (peace and blessings be upon him) replied: "Wa Alaika" (and upon you too). Lady Aisha (may Allah be pleased with her) says: I wanted to say something, but I knew that the Prophet (peace and blessings be upon him) would dislike it, so I remained silent. Another Jew came and said: "As-samu Alaikum" (death and destruction be upon you). The Prophet (peace and blessings be upon him) said: "Wa Alaika" (and upon you too). This time as well, I wanted to say something, but due to the Prophet's (peace and blessings be upon him) dislike, I remained silent. Then a third Jew came and said: "As-samu Alaikum." I could not remain patient and I spoke out: "O apes and swine! Destruction be upon you, may Allah's wrath and His curse be upon you. Do you wish to adopt the manner in which Allah did not send salutations upon the Messenger of Allah (peace and blessings be upon him)?" The Messenger of Allah (peace and blessings be upon him) said: "Allah does not like foul language and obscenity. They (the Jews) said 'As-samu Alaika' and we also (avoiding foul language, simply replied with) 'Wa Alaika.' In fact, the Jews are a jealous people and do not envy us for any trait as much as they do for (our) greeting of peace and for saying Ameen."

Syedna Jabir bin Abdullah (may Allah be pleased with them both) narrates that some Jews, under the pretense of greeting, said to the Prophet Muhammad (peace and blessings be upon him): O Abu al-Qasim! As-Saam Alaika (death be upon you). He replied: Wa Alaikum (and upon you). Lady Aisha (may Allah be pleased with her) said, while she was angry: O Messenger of Allah! Did you hear what they said? The Prophet (peace and blessings be upon him) said: Yes, I heard, and I have replied to them. The fact is that our supplications against them are accepted, but their supplications against us are not accepted.

Sayyiduna Abdullah bin Busr Mazni (may Allah be pleased with him) narrates that when the Noble Prophet (peace and blessings be upon him) would come to people's houses, he would stand near its wall and would not stand in front of its door.

(Second chain) When the Noble Prophet (peace and blessings be upon him) came to the door of someone's house to seek permission, he would not stand facing the door; rather, he would walk along the wall until he had sought permission or else he would return.