Sayyiduna Utbah bin Abd and Sayyiduna Abu al-Darda' (may Allah be pleased with them both) said: The Messenger of Allah (peace and blessings be upon him) said: "Eat suhur in the last part of the night." And he (peace and blessings be upon him) used to say: "It is the blessed morning meal."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14394