It says so right here:
The Acts of Peter
And, here's a picture for those who may be in doubt:
![[Image: scooby-doo-mystery-incorporated-standup.jpg]](https://secure.img1-fg.wfcdn.com/im/29796096/compr-r85/4145/41457076/scooby-doo-mystery-incorporated-standup.jpg)
Quote:IX. As Peter spake thus with great sorrow of mind, many were added unto them that believed on the Lord. But the brethren besought Peter to join battle with Simon and not suffer him any longer to vex the people. And without delay Peter went quickly out of the synagogue (assembly) and went unto the house of Marcellus, where Simon lodged: and much people followed him. And when he came to the door, he called the porter and said to him: Go, say unto Simon: Peter because of whom thou fleddest out of Judaea waiteth for thee at the door. The porter answered and said to Peter: Sir, whether thou be Peter, I know not: but I have a command; for he had knowledge that yesterday thou didst enter into the city, and said unto me: Whether it be by day or by night, at whatsoever hour he cometh, say that I am not within. And Peter said to the young man: Thou hast well said in reporting that which he compelled thee to say. And Peter turned unto the people that followed him and said: Ye shall now see a great and marvellous wonder. And Peter seeing a great dog bound with a strong chain, went to him and loosed him, and when he was loosed the dog received a man's voice and said unto Peter: What dost thou bid me to do, thou servant of the unspeakable and living God? Peter said unto him: Go in and say unto Simon in the midst of his company: Peter saith unto thee, Come forth abroad, for thy sake am I come to Rome, thou wicked one and deceiver of simple souls. And immediately the dog ran and entered in, and rushed into the midst of them that were with Simon, and lifted up his forefeet and in a loud voice said: Thou Simon, Peter the servant of Christ who standeth at the door saith unto thee: Come forth abroad, for thy sake am I come to Rome, thou most wicked one and deceiver of simple souls. And when Simon heard it, and beheld the incredible sight, he lost the words wherewith he was deceiving them that stood by, and all of them were amazed.
The Acts of Peter
And, here's a picture for those who may be in doubt:
