Sayyiduna Ibn Abbas (may Allah be pleased with them both) narrates that on the day of sacrifice at Mina, when people would ask questions to the Messenger of Allah (peace be upon him), he would say: "There is no harm (if the order is mixed up), there is no harm." A person asked you and said that he had shaved his head before sacrificing. The Prophet (peace be upon him) said: "There is no harm." And another person said that he had thrown the pebbles after evening. The Prophet (peace be upon him) said: "There is no harm." In the narration of Yazid bin Zuray', these words are mentioned: "Now slaughter (the animal), and there is no harm."