Reference for Shabbat 244:13

אמר אביי לעולם קסבר יש בנין בכלים ויש סתירה בכלים ושניטלו קאמר

on the contrary, on the Sabbath they stand 'prepared' in virtue of their origin;<span class="x" onmousemove="('comment',' Lit., 'father'. If they became detached on the Sabbath since they were fit to handle at the beginning of the Sabbath, when they were part of the whole, they remain so for the whole Sabbath. ');">¹⁰</span>

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