Ata ibn Yasar عطاء بن يسار أبو محمد مولى ميمونة · The Book of Leading the Prayer (Al-Imamah)

(Another chain) with similar from Abu Rafi.

"The likeness of one who comes early to prayer is that of one who sacrificed a camel, then the one who comes after him is like one who sacrificed a cow, then the one who comes after him is like one who sacrificed a ram, then the one who comes after him is like one who sacrificed a chicken, then the one who comes after him is like one who sacrificed an egg."