The next day, which was the day after Preparation Day, the chief priests and the Pharisees gathered before Pilate.
References for Matthew 27:62
They said, "Sir, we remember that while that deceiver was still alive he said, ‘After three days I will arise.'
Therefore, order the grave to be sealed until the third day. Otherwise, his disciples may come and steal the body and tell the people, ‘He's been raised from the dead.' This last deception will be worse than the first."
Pilate replied, "You have soldiers for guard duty. Go and make it as secure as you know how."
Then they went and secured the tomb by sealing the stone and posting the guard.