Sayyiduna Abu Dharr Ghifari (may Allah be pleased with him) narrates this statement of the Prophet (peace and blessings be upon him): "All the good and bad deeds of my Ummah were presented before me, so among their good deeds I saw this: that filth which is removed from the path, and among their bad deeds I saw this: that spittle is thrown in the mosque and it is not buried."