Musnad Ahmad 30:3393

Yazid narrated to us, Muhammad informed us, from Abu Salamah, from Abu Hurairah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "The first group to enter Paradise from my nation will be in the form of the moon on the night of the full moon. Then those who follow them will be like the most brilliant, shining star in the sky." Then Ukashah ibn Mihsan stood up and said: "O Messenger of Allah, pray to Allah to make me one of them." He said: "O Allah, make him one of them." Then another man stood up and said: "O Messenger of Allah, pray to Allah to make me one of them." He said: "Ukashah has preceded you to it."