Who quoted, "What shall I do to be saved?"

an old man clothed in rags......

"As I walked through the wilderness of this world, I lighted on a certain place where was a den, and laid me down in that place to sleep; and as I slept, I dreamed a dream. I dreamed, and behold, I saw a man clothed with rags, standing in a certain place, with his face from his own house, a book in his hand, and a great burden upon his back.....

......Now I saw, upon a time, when he was walking in the fields, that he was (as he was wont) reading in his book, and greatly distressed in his mind; and as he read, he burst out, as he had done before, crying, "What shall I do to be saved?"