Abdullah ibn Muhammad ibn Asma' al-Duba'i and Shayban ibn Farrukh narrated to us; they said: Mahdi ibn Maymun narrated to us; Wasil, the freed slave of Abu 'Uyaynah, narrated to us, from Yahya ibn 'Uqayl, from Yahya ibn Ya'mar, from Abu al-Aswad al-Dili, from Abu Dharr, from the Prophet (peace be upon him) who said: "The deeds of my nation were presented before me, their good and their bad. I found among the good deeds of my nation the removal of harm from the road, and I found among the bad deeds of my nation the spittle that is in the mosque and is not buried."