(4) باب إِذَا عَرَّضَ الذِّمِّيُّ وَغَيْرُهُ بِسَبِّ النَّبِيِّ صلى الله عليه وسلم وَلَمْ يُصَرِّحْ نَحْوَ قَوْلِهِ السَّامُ عَلَيْكَ
Narrated Ibn `Umar:
Allah's Messenger (ﷺ) said, "When the Jews greet anyone of you they say: 'Sam'Alaika (death be upon you); so you should say; 'Wa 'Alaika (and upon you).'" (PT)
Reference (PT): Sahih al-Bukhari 6928 (PT)
In-book reference (PT): Book 88, Hadith 10 (PT)
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 9, Book 84, Hadith 62 (PT)