The Prophet (ﷺ) said, "The example of guidance and knowledge with which Allâh has sent me is like abundant rain falling on the earth, some of which was fertile soil that absorbed rain-water and brought forth vegetation and grass in abundance. (And) another portion of it was hard and held the rain water and Allâh benefited the people with it and they utilized it for drinking, (making their animals drink from it) and to irrigate the land for cultivation. (And) a portion of it was barren which could neither hold the water nor bring forth vegetation (then that land gave no benefits). The first is the example of the person who comprehends Allâh's Religion (Islâm) and gets benefit (from the knowledge) which Allâh has revealed through me (the Prophet (ﷺ) and learns and then teaches it to others. The (last example is that of a) person who does not care for it and does not take Allâh's Guidance revealed through me (He is like that barren land.) [1:79-O.B.]