Lady Aisha (may Allah be pleased with her) narrates that I never saw the Messenger of Allah (peace be upon him) hasten in any good deed or in the distribution of war booty as much as he would hasten in performing the two rak'ahs before Fajr.
Hadith Referenceصحيح ابن خزيمه / جماع أبواب الركعتين قبل الفجر وما فيها من السنن / 1108