Reference for Bava Batra 299:7

ואלא מאי כמטלטלא דמי מאי אפי' [אלא] מאי אית לך למימר שאני מטלטלא דנייד ממטלטלא דלא נייד אפי' תימא כמקרקעא דמי שאני מקרקעא דנייד ממקרקעא דלא נייד

— R Aha son of R. Awia said to R. Ashi, Come and hear: He who sold a town has [also] sold [its] houses, ditches and caves, [its] bath houses, olive presses and irrigation works, but not the movables [that it contains]. In the case, however,<span class="x" onmousemove="('comment',' Lit., 'and at the time'. ');">²⁹</span> where he said, 'It and all that it contains', all its contents,<span class="x" onmousemove="('comment',' Lit., 'all of them'. ');">³⁰</span> even if it consisted of<span class="x" onmousemove="('comment',' Lit., 'they were in it' ');">³¹</span> cattle or slaves, are sold.<span class="x" onmousemove="('comment',' Supra 88a. ');">³²</span> [Now.] if it is granted [that slaves are] like movables, one can well understand why they are not included in the sale in the first [case];<span class="x" onmousemove="('comment',' Where the town only was sold, and all movables were, consequently, excluded. ');">³³</span>

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