Alam tara anna Allaha anzala mina alssamai maan fasalakahu yanabeeAAa fee alardi thumma yukhriju bihi zarAAan mukhtalifan alwanuhu thumma yaheeju fatarahu musfarran thumma yajAAaluhu hutaman inna fee thalika lathikra liolee alalbabi
Do you not see that God sends down water from the sky, then makes it flow in rills on the earth, and brings forth corn from it which, having passed through changes of shade and colour, comes to ripen, and you see it autumnal yellow; then He reduces it to chaff. There are indeed lessons in this for those who are wise.