Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates that the Noble Prophet (peace and blessings be upon him) sent eighteen sacrificial camels with a man and gave him instructions regarding them. The man returned and asked: If any of them becomes weak, what is the ruling? The Prophet said: Slaughter it, then dye its collar with its blood and place it on its side, and neither you nor any of your companions should eat from it.