It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that I heard the Prophet (peace and blessings of Allah be upon him) saying: The example of the five obligatory prayers is like that of a river flowing at the door of one of you, and he bathes in it five times a day.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 14275