A/A when Ibraahim (AS) saw a dream, in which Allah had ordered him to scarifies his son. Had Ibraahim (AS) slaughtered 100 camels in spite of that on the first day, then again 100 camels on the second day. is slaughtering of camel by him is true, if yes please give me its reference

All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His Slave and Messenger.

The correct opinion that most scholars adopt is what Ibn Katheer stated that Ismaa‘eel (Ishmael) was ransomed with a ram. It was reported from Ibn ‘Abbaas that he was ransomed with a mountain sheep. At-Tabari reported that Mujaahid said: “He was ransomed with a ewe.”

We did not find anyone stating that he was ransomed with camels. Rather, Al-Qurtubi confirmed that redemption was not done with camels or cows, as he said: “That was a ram not a camel nor a cow.”

The story of the redemption of ‘Abdul-Muttalib, where he ransomed his son ‘Abdullaah, the father of the Messenger of Allaah, sallallaahu ‘alayhi wa sallam, indicates that he fulfilled his vow with camels; as he had made a vow to sacrifice one of his adult sons and thus he ransomed him with 100 camels as reported in the books of biography and history.

Allaah Knows best.