Hazrat Muhammad bin Salih Al-Ansari (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) met Hazrat Awf bin Malik (may Allah be pleased with him) and said: "O Awf bin Malik! In what condition did you begin your morning?" He (may Allah be pleased with him) replied: "I began my morning in the state of being a true believer." Then the Messenger of Allah (peace and blessings be upon him) said: "Indeed, every statement has a reality. What is the reality of your statement?" He (may Allah be pleased with him) replied: "O Messenger of Allah (peace be upon you)! Have I not restrained myself from the world? I kept myself awake at night and kept myself thirsty during the intense heat of the day. It is as if I am seeing the people of Paradise, that they are conversing with one another in Paradise, and it is as if I am seeing the people of Hell, that they are crying out in Hell." So the Messenger of Allah (peace and blessings be upon him) said: "You have recognized (the truth)," or he said, "You have believed, so hold fast to it."