Quran 41:49~51

The human being never tires of praying for good things; but when adversity afflicts him, he despairs and loses hope.

And when We let him taste a mercy from Us, after the adversity that had afflicted him, he will say, “This is mine, and I do not think that the Hour is coming; and even if I am returned to my Lord, I will have the very best with Him.” We will inform those who disbelieve of what they did, and We will make them taste an awful punishment.

When We provide comfort for the human being, he withdraws and distances himself; but when adversity befalls him, he starts lengthy prayers.