Musnad Ahmad 482:14

Yahya ibn Sa'id narrated to us, from Hisham al-Dastawa'i, who said: Yahya narrated to us, from Baj'ah ibn 'Abd Allah, from 'Uqbah ibn 'Amir: That the Messenger of Allah (may Allah bless him and grant him peace) distributed sacrificial animals among his companions, and a *jadha'ah* (a young sheep) fell to the share of 'Uqbah ibn 'Amir. He asked the Prophet (may Allah bless him and grant him peace) about it, and he said: "Sacrifice it."