Halakhah for Sanhedrin 171:1

תני תנא קמיה דרב ששת א"ל אני שונה רבי שמעון אומר מאחיו עד שיוציאנו מרשות אחיו ואת אמרת חייב תני פטור

Now, a tanna recited [this Baraitha] before R. Shesheth. whereupon he observed: I learned. 'R. Simeon said, [if a man be found stealing a person] from his brethren, [implies that he is not liable unless he] withdraws him from the control of his brethren, [i.e., relations].' yet you say that he is liable!<span class="x" onmousemove="('comment',' For selling him to his father, etc. ');">¹</span>

Sefer HaChinukh

Sefer HaChinukh