Reference for Shabbat 257:12

וא"ל אביי לרבה והא קעבר מר משום (דברים כ, יט) בל תשחית א"ל בל תשחית דגופאי עדיף לי

but if her husband is with her, he makes her warm. Even as R. Hisda's daughter performed tebillah within thirty days in her husband's absence,<span class="x" onmousemove="('comment',' Lit., 'not in her husband's presence'. ');">⁹</span>

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