Hadith 708

Anas reported God's Messenger as saying, “Spitting in the mosque is a sin which is expiated by burying the spittle.” (Bukhari and Muslim.)

وَعَنْ أَنَسٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «الْبُزَاقُ فِي الْمَسْجِد خَطِيئَة وكفارتها دَفنهَا»

Reference: 5607080
In-book reference: Book 4, Hadith 708