It is narrated from Sayyiduna Mu'awiyah bin Haydah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "The people of Paradise will be one hundred and twenty rows; you, the people of this Ummah, will be eighty rows of them, and the rest of the people will be in the remaining rows. And you complete the number of seventy nations; you are the best of them and the most honoured of them before Allah, the Mighty and Majestic."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 17061