It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Hasten to perform righteous deeds before the coming of tribulations which will be like the dark portions of the night. In that time, a man will be a believer in the morning and a disbeliever in the evening, or a believer in the evening and a disbeliever in the morning, and he will sell his religion for a small portion of worldly goods.