Narrated Usama bin Zaid: Once the Prophet stood at the top of one of the castles (or higher buildings) of Medina and said, "Do you see what I see? No doubt I am seeing the spots of afflictions amongst your houses as numerous as the spots where raindrops fall (during a heavy rain). (See Hadith No. 102)
And Hammam narrated from Abu Huraira, may Allah be pleased with him, and he narrated from the Prophet, peace and blessings be upon him, that: Removing something harmful from the road is also a charity.
Hadith Referenceصحيح البخاري / کتاب المظالم والغصب / 2467