God's Messenger, upon him be peace and blessings, used to go to Quba, riding or on foot, every Saturday and offer a two-rak'at prayer. He advised others to do the same: "Whoever makes ablutions at home and then goes and prays in the Quba Mosque will have a reward like that of an 'Umra." (Asim Köksal, Islam Tarihi [The History of Islam], Ist., 1:12) Thus, pilgrims who visit Madina should also visit the Quba Mosque and pray there.