It is narrated from Hazrat Ibn Masood (may Allah be pleased with him) that he said: On the Day of Resurrection, every person among the people will wish that whatever he used to eat in the world was only to the extent of sustaining life... eating just enough to survive... and nothing of the world, whether morning or evening, in whatever condition it may be, will harm any of you if there is no pain in his heart. And it is better for any of you to hold a burning coal until it is extinguished than for a person to say about any matter decided by Allah: "I wish this had not happened."