الادب المفرد
Al-Adab al-Mufrad
كتاب السلامBook of Greeting (Salam)
بَابُ مَنْ لَمْ يَرُدَّ السَّلامَChapter: One who does not reply to Salam
Hadith 1040
حَدَّثَنَا مُحَمَّدُ بْنُ يُوسُفَ، قَالَ: حَدَّثَنَا سُفْيَانُ، عَنْ هِشَامٍ، عَنِ الْحَسَنِ قَالَ: التَّسْلِيمُ تَطَوَّعٌ، وَالرَّدُّ فَرِيضَةٌ.
It is narrated from Hasan al-Basri, may Allah have mercy on him, that he said: Saying salam is voluntary, and responding to it is obligatory.
