Answer:
He asked him to kill a knight that has been bothering the king and only then will Percival be able to talk to the king.
Explanation:
Percival was an orphan and when he encountered a group of knights, he decided to be one of them. So, he went to the court of King Arthur where he was ridiculed by Sir Kay, the foster brother and one of the knights in King Arthur's Round Table. When Kay heard about Percival's desire to be made knight, he asked him to prove his courage and publicly mocks him. He also asked him to go and kill a knight who had been bothering the king. Only then will Sir Kay allow audience to Percival with King Arthur. In order to prove Percival wrong and also to prove that he is worthy of the knighthood, he went to kill the knight and even took his vermilion armor.
