Sahih al-Bukhari 2754

Qutayba ibn Saʿid narrated to us; Abu ʿAwana narrated to us, from Qatada, from Anas (may Allah be pleased with him): The Prophet saw a man leading a sacrificial camel and said, “Ride it.” The man said, “Messenger of Allah, it is a sacrificial camel.” He repeated the instruction; on the third or fourth time he said, “Ride it, woe to you”—or “alas for you.”