Al-A'raj narrates from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "We are the last in terms of this world, but in the Hereafter we will be ahead of people, except that all the nations were given Books before us and we were given the Book after them. Then this day (Jumu'ah), Allah made obligatory upon us, and Allah also guided us to it, while people follow us in it: the Jews a day after and the Christians two days after."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجمعة / 5566