Gemara Taanit 21b- various explanation of story of Rav/R Huna's neighborhoods being spared from imminent damage in merit of a person who did kindness (lent shovel for burial, heated oven for others to use)
Gemara Taanit 21b- various explanation of story of Rav/R Huna's neighborhoods being spared from imminent damage in merit of a person who did kindness (lent shovel for burial, heated oven for others to use)