Musnad Ahmad 30:141

Sufyan narrated to us, from al-Zuhri, from Sa’id, from Abu Hurayrah, from the Prophet, peace and blessings of Allah be upon him, who said: "The one who goes early to the Friday prayer is like one who offers a camel as a sacrifice. Then the one who follows him is like one who offers a cow. Then the one who follows him is like one who offers a ram." He continued until he mentioned the hen and the egg.