Buddha and his disciples in Nalanda

Once, when the Buddha was staying at Nalanda, one of his disciple said to him: "Lord, Nalanda is rich, prosperous, crowded, full of people who have faith in you. It would be good if you were to get a monk to perform extraordinary feats and miracles. In this way Nalanda would come to have even more faith". The Buddha refused this request because he wanted people to follow the Dhamma out of understanding, not because they had been impressed by miracles or psychic feats.