Musar for Bava Batra 157:10
הכי קאמר נראין דברי רבי יהודה לרבי יוסי בבור ושובך שאף רבי יוסי לא נחלק עליו אלא בשדה ואילן אבל בבור ושובך מודי ליה
filled with water, a dunghill which was subsequently filled with manure, a dove-cote, which was subsequently filled with doves, a tree which subsequently began to bear fruit [or] a field which was subsequently filled with herbs, [in all these cases] the law of <i>Me'ilah</i> is applicable to the objects but not to their contents. These are the words of R. Judah. R. Jose says: If fields or trees are dedicated,<span class="x" onmousemove="('comment',' Lit., 'he who dedicates the field or the tree'. ');"><sup>18</sup></span> they and their products are subject to the law of <i>Me'ilah</i>, because [the latter] are the growths of consecrated property.