Musannaf Ibn Abi Shayba 37:176

Husayn ibn Ali narrated to us, from Za'idah, from Hisham, who said: Al-Hasan claimed that the Prophet of Allah, Moses, peace be upon him, asked his Lord to show him the Beast. He said: So it emerged for three days, and one could not see either of its two ends. He said: So he said, "My Lord, return it," and it was returned.