The Cow - 2:245
Who offers to Allah a good reward to be paid in multiples? Allah is the one who shortens and the one who opens. To Him you will be returned.
What is the intention?
The Thunder/13:26
Allah increases or decreases provision for whom He wills. They rejoice in the life of this world, while the life of this world is but a subsistence compared to the Hereafter.
The Dawn/89:15
"When his Lord gives to man abundantly to test him, he says: "My Lord has been generous to me"."
The Dawn/89:16
"But when his Lord tests him by withholding his sustenance, he says, "My Lord has humiliated me."