Reference for Moed Katan 27:15
הכי קאמר נראין דברי ר' יהודה לרבנן כשיצא שלא ברשות ומאי ניהו לשוט שאפילו חכמים לא נחלקו עליו אלא להרויחא אבל לשוט מודו ליה ונראין דברי רבנן לר' יהודה כשיצא ברשות ומאי ניהו למזונות שאפילו רבי יהודה לא נחלק עליהם אלא להרויחא אבל למזונות מודה להו
- This is what he [Rabbi] meant to say: The Rabbis accept R'Judah's opinion where he had started out 'without approval', and what means it? For going on a tour; because, even the Sages disagree with him only on [the question of a voyage] for gaining profit, whereas in regard to going on a tour they concur with him.<span class="x" onmousemove="('comment',' That he is to be penalized if his homecoming was delayed, and not allowed to trim himself during the festival week.');"><sup>19</sup></span> And again, R'Judah accepts the Rabbis' opinion [that he may attend to himself]<span class="x" onmousemove="('comment',' To attend to his personal appearance during the festival week.');"><sup>16</sup></span>