Reference for Kiddushin 73:8

לחומרא פליג וה"ק ת"ק חוץ מן הערלה ומן הכלאים דהלכתא גמירי לה אע"ג דאיכא למימר חובת קרקע היא אבל חדש בארץ אין בח"ל לא

Now, since the Writ extends and limits [the duration of the precepts], go forth and learn from what is stated in that passage: Ye shall utterly destroy all the places, wherein the nations served their God:<span class="x" onmousemove="('comment',' Ibid. 2.');">¹¹</span> just as [the destruction of] idolatry is singled out as being a personal duty, and is obligatory both within and without the land,<span class="x" onmousemove="('comment',' Since 'all the days etc.,' immediately precedes this,');">¹²</span>

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