Quran 2:71 — The Heifer (Al-Baqarah)

He said, "He says that she is a heifer that was never humiliated in plowing the land or watering the crops; free from any blemish." They said, "Now you have brought the truth." They finally sacrificed her, after this lengthy reluctance.

[2:70] They said, "Call upon your Lord to show us which one. The heifers look alike to us and, GOD willing, we will be guided."

[2:72] You had killed a person, then disputed among yourselves. GOD was to expose what you tried to conceal.