Reference for Sotah 72:21

אישתעי איהו בלשון הקדש לא הוה קא ידע מאי הוה אמר א"ל אגמרי אגמריה ולא גמר אמר ליה אישתבע לי דלא מגלית אישתבע לו

At that moment his father's image came and appeared to him through the window and said: 'Joseph, thy brothers will have their names inscribed upon the stones of the ephod and thine amongst theirs; is it thy wish to have thy name expunged from amongst theirs and be called an associate of harlots?' (As it is written: He that keepeth company with harlots wasteth his substance.)<span class="x" onmousemove="('comment',' Prov. XXIX. 3. ');">¹⁹</span>

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