Musannaf Ibn Abi Shaybah 25150 — A man who is frightened by something

It is narrated from Mujahid that he said: I used to suffer a great trial from seeing ghouls and devils, and I would see an apparition. I asked Sayyiduna Ibn Abbas (may Allah be pleased with them both) (about this), and he said: Be bold against what you have seen and do not fear it, for just as you fear it, it fears you. Do not be more cowardly than it. Mujahid said: Then I saw it again, and I struck it with a stick, until I even heard the sound of the blow.