Al-Hadid: (20) "Know that the life of this world..."
Know that the life of this world is nothing but trivial matters: play, amusement, adornment, boasting among yourselves, and rivalry in wealth and children.
As for the Hereafter, it is nothing but momentous affairs: severe punishment, or forgiveness from Allah and His good pleasure.
He likens the state of this world and the speed of its passing, along with the insignificance of its benefit, to vegetation brought forth by rain. It grows straight and reaches maturity, delighting the disbelievers—those who deny Allah’s favor in the rain and vegetation He provided them. Then, He sends a blight upon it, so it withers, turns yellow, and becomes debris, as a punishment for their ingratitude—just as He did with the companions of the Garden and the owner of the two gardens.
It is also said: "The disbelievers" refers to the farmers. It has been recited as musfarran (turning yellow).
{ Race toward forgiveness from your Lord and a Garden whose width is like the width of the heaven and the earth, prepared for those who believed in Allah and His messengers. That is the bounty of Allah, which He gives to whom He wills, and Allah is the possessor of great bounty. }