Hadith.2559 - Al-Halabi asked Abu Abdullah (as): "Did the Messenger of Allah (swt) (peace be upon him and his family) enter the state of Ihram at night or during the day?" Imam (as) replied: "During the day." I asked: "At what time?" Imam (as) said: "At the time of the Zuhr prayer." I then asked him: "When do you think we should enter Ihram?" Imam (as) said: "It is the same for you. The Messenger of Allah (swt) (peace be upon him and his family) entered Ihram at the time of the Zuhr prayer because water was scarce and was only found at the tops of the mountains. A man would set out in the afternoon and find himself in a similar situation the next day, struggling to find water. These water sources have only been made available recently."