Amr bin Dinar عمرو بن دينار الأثرم الجمحي · The Book of Leading the Prayer (Al-Imamah)

"When the Messenger of Allah (ﷺ) became seriously ill, Bilal came to tell him it was time to pray and he said: 'Tell Abu Bakr to lead the people in prayer."' She said: "I said: '0 Messenger of Allah (ﷺ), Abu Bakr is a tender-hearted man, and when he stands in your place he will not be able to make the people hear his voice; why don't you tell 'Umar (to do it)?' He said: 'Tell a Abu Bakr to…

(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."