"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." (Using translation from Nasāʾī 864)  

أَنَّ رَسُولَ اللهِ ﷺ قَالَ «إِنَّمَا مَثَلُ الْمُهَجِّرِ إِلَى الصَّلَاةِ كَمَثَلِ الَّذِي يَهْدِي الْبَدَنَةَ ثُمَّ الَّذِي عَلَى إثَرِهِ كَالَّذِي يَهْدِي الْبَقَرَةَ ثُمَّ الَّذِي عَلَى إثَرِهِ كَالَّذِي يَهْدِي الْكَبْشَ ثُمَّ الَّذِي عَلَى إثَرِهِ كَالَّذِي يَهْدِي الدَّجَاجَةَ ثُمَّ الَّذِي عَلَى إثَرِهِ كَالَّذِي يَهْدِي الْبَيْضَةَ»