Ibn Majah

"The Messenger of Allah (ﷺ) used to sacrifice two horned, black-and-white rams and he would say the Name of Allah and pronounce His greatness. I saw him slaughtering them with his own hand, putting his foot on their sides."

"The Messenger of Allah (ﷺ) sacrificed two rams on the Day of "Eid. When he turned them to face towards the prayer direction he said: "Verily, I have turned my face towards Him Who has created the heavens and the earth, as a monotheist, and I am not of the polytheists. Verily, my prayer, my sacrifice, my living, and my dying are for Allah, the Lord of all that exists. He has no partner. And of this I have been commanded, and I am the first of the Muslims. [6:79,162-163] O Allah, from You to You, on behalf of Muhammad and his nation.'"

It was narrated from "Aishah and Abu Hurairah that when the Messenger of Allah (ﷺ) wanted to offer a sacrifice, he brought two large, fat, horned, black-and-white, castrated rams. He slaughtered one on behalf of his nation, for whoever testified to Allah with monotheism and that he had conveyed (the Message), and he slaughtered the other on behalf of Muhammad and the family of Muhammad (ﷺ).

"Whoever can afford it, but does not offer a sacrifice, let him not come near our prayer place."

"I asked Ibn "Umar about sacrifices and whether they are obligatory. He said: "The Messenger of Allah (ﷺ) and the Muslims after him offered sacrifices, and this is the Sunnah.'"

"We were standing with the Prophet (ﷺ) at "Arafat and he said: "O people, each family, each year, must offer Udhiyah and "Atirah.'

"The son of Adam does not do any deed on the Day of Sacrifice that is dearer to Allah than shedding blood. It will come on the Day of Resurrection with its horns and cloven hoofs and hair. Its blood is accepted by Allah before it reaches the ground. So be content when you do it."

"The Companions of the Messenger of Allah (ﷺ) said: "O Messenger of Allah, what are these sacrifices?' He said: "The Sunnah of your father Ibrahim.' They said: "What is there for us in them, O Messenger of Allah?' He said: "For every hair, one merit.' They said: "What about wool, O Messenger of Allah?' He said: "For every hair of wool, one merit.'"

"The Messenger of Allah (ﷺ) sacrificed a horned, defectless ram with a black stomach, black feet and black around its eyes."