(4) باب النَّهْىِ عَنِ ابْتِدَاءِ، أَهْلِ الْكِتَابِ بِالسَّلاَمِ وَكَيْفَ يَرُدُّ عَلَيْهِمْ
Ibn 'Umar reported Allah's Messenger (ﷺ) as saying:
When the Jews offer you salutations, some of them say as-Sam-u-'Alaikum (death be upon you). You should say (in response to it): Let it be upon you. (JA)
Reference (JA): Sahih Muslim 2164 a (JA)
In-book reference (JA): Book 39, Hadith 9 (JA)
USC-MSA web (English) reference(deprecated numbering scheme): Book 26, Hadith 5382 (JA)