Musnad Ahmad 30:2992

Yahya narrated to us, from Isma'il—meaning Ibn Abi Khalid—he said: Ziyad—meaning the freed slave of Banu Makhzum—narrated to us, from Abu Hurairah, from the Prophet (peace and blessings of Allah be upon him), who said: "We are the last, the first on the Day of Resurrection. The first group of my nation to enter Paradise, the appearance of every man among them is like the appearance of the moon on the night of the full moon. Then those who follow them are like the most intense light of a star in the sky. Then they are in ranks after that."