When a Muslim is greeted with the word
(salam) or
its variants, they should reply Wa Alaikum as-Salam - And
upon you be peace, As-Salamu Alaykum (السلام عليكم) is an Arabic
language greeting used in Muslim cultures. It means (Peace be
upon you). It is also transliterated as Assalamu Alaikum or
As-salaamu Alaikum. The traditional response is (wa
Alaykum As-Salam), meaning (and on you be peace).
This type of greeting is common in the Middle East.