Abu Huraira (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) sent us on an expedition and said: If you find such and such two Qurayshi men, burn them in the fire. Then, when we were about to depart, the Prophet (peace and blessings be upon him) said: I had ordered you to burn such and such people in the fire, but only Allah can punish with fire. If you find them, then kill them.