וַיֹּ֥אמֶר נָב֖וֹת אֶל־אַחְאָ֑ב חָלִ֤ילָה לִּי֙ מֵֽיהוָ֔ה מִתִּתִּ֛י אֶת־נַחֲלַ֥ת אֲבֹתַ֖י לָֽךְ׃
And Naboth said to Ahab: ‘The LORD forbid it me, that I should give the inheritance of my fathers unto thee.’
Sforno
ופגעו לי בעפרון, that he will sell me this cave even though it is not an agreeable thing for a highly placed person to sell any portion of his land-holdings. We know this from Navot (Kings I 21,3) who had been aghast at the suggestion of selling his vineyard to the king. His precise words were: חלילה לי מתתי את נחלת אבותי לך, “far be it from me to give you any part of my ancestral heritage.”