Reference for Bava Kamma 227:9
הרי אלו שלו מפני שהבעלים כו': אמר רב אשי לא שנו אלא לסטים עובד כוכבים אבל ליסטים ישראל לא סבר למחר נקיטנא ליה בדינא
and consequently the misappropriated article has at the very outset come into his possession unlawfully;<span class="x" onmousemove="('comment',' According to Tosaf. ibid, the true owner abandoned the article only after it changed hands from the customs-collector to the new possessor; the Mishnaic ruling, however, deals with another case as explained supra p. 670, n. 1. ');"><sup>14</sup></span> Some, however, read: 'If he cares to give up [the article given him by the customs-collector], he should restore it to the original proprietors',<span class="x" onmousemove="('comment',' [MSM.: 'to the customs-collector' (since he acquired it by Renunciation)]. ');"><sup>15</sup></span>