Hastening to do Good Deeds

Abu Hurayrah (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "Hasten to good deeds before being overtaken by tribulations that are like parts of the dark night. A man would be a believer in the morning and turn to a disbeliever in the evening, or he would be a believer in the evening and turn to a disbeliever in the morning. He sells his religion for a worldly gain.”  (Muslim).