Midrash for Sanhedrin 178:1
חבריה דמיכה דכתיב (מלכים א כ, לה) ואיש אחד מבני הנביאים אמר אל רעהו בדבר ה' הכני נא וימאן האיש להכותו וכתיב (מלכים א כ, לו) ויאמר לו יען אשר לא שמעת [וגו']
[i.e., Micaiah, the son of Imlah] as it is written, And a certain man of the son of the prophets said unto his neighbour in the word of the Lord, Smite me I pray thee. And the man refused to smite him.<span class="x" onmousemove="('comment',' I Kings XX, 35. ');"><sup>1</sup></span> And it is further written, And he said unto him, Because thou has not obeyed [the voice of the Lord, behold as soon as thou art departed from me, a lion shall slay thee etc.]<span class="x" onmousemove="('comment',' Ibid. 36. According to the Rabbis, the prophet here referred to was Micaiah the son of Imlah (v. ibid. XXII, 9 et seq.). ');"><sup>2</sup></span>