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"One with whom was knowledge of the Scripture said: "I will bring it to you within the twinkling of an eye!" then when [Sulaiman (Solomon)] saw it placed before him, he said: "This is by the Grace of my Lord to test me whether I am grateful or ungrateful! And whoever is grateful, truly, his gratitude is for (the good of) his ownself, and whoever is ungrateful, (he is ungrateful only for the loss of his ownself), Certainly! My Lord is Rich (Free of all wants), Bountiful."" [An-Naml (27):40]

Narrated Abu Musa:

The Prophet said, "The example of guidance and knowledge with which Allah 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 Allah benefited the people with it and they utilized it for drinking, making their animals drink from it and for irrigation of 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 Allah's religion and gets benefit (from the knowledge) which Allah has revealed through me (the Prophets and learns and then teaches others. The last example is that of a person who does not care for it and does not take Allah's guidance revealed through me (He is like that barren land.)" [The Book of Knowledge Volume 1, Book 3, Hadeeth 79]