صحيح مسلم
Sahih Muslim
كتاب المساجد ومواضع الصلاة
The Book of Mosques and Places of Prayer
باب النَّهْيِ عَنِ الْبُصَاقِ فِي الْمَسْجِدِ فِي الصَّلاَةِ وَغَيْرِهَا:
Chapter: The prohibition of spitting in the masjid, during prayer and at other times. The prohibition of a praying person spitting in front of him or to his right
Hadith 552
This hadith is listed as number 1231 in Maktaba Shamila
وحَدَّثَنَا يَحْيَى بْنُ يَحْيَى ، وَقُتَيْبَةُ بْنُ سَعِيدٍ ، قَالَ يَحْيَى : أَخْبَرَنَا ، وَقَالَ قُتَيْبَةُ : حَدَّثَنَا أَبُو عَوَانَةَ ، عَنْ قَتَادَةَ ، عَنْ أَنَسِ بْنِ مَالِكٍ ، قَالَ : قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ : " الْبُزَاقُ فِي الْمَسْجِدِ خَطِيئَةٌ ، وَكَفَّارَتُهَا دَفْنُهَا " .
Anas bin Malik (RA) reported: The Messenger of Allah (ﷺ) said: Spitting in a mosque is a sin, and its expiation is that it should be buried.
