It is narrated from Sayyiduna Sahl bin Sa'd (may Allah be pleased with him) that he said: "I would eat the pre-dawn meal (suhur) with my family, then my haste would be such that I could catch the Fajr prayer with the Messenger of Allah (peace and blessings be upon him)."
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 5850