וַיָּ֨קָם הַשָּׂדֶ֜ה וְהַמְּעָרָ֧ה אֲשֶׁר־בּ֛וֹ לְאַבְרָהָ֖ם לַאֲחֻזַּת־קָ֑בֶר מֵאֵ֖ת בְּנֵי־חֵֽת׃ (ס)
And the field, and the cave that is therein, were made sure unto Abraham for a possession of a burying-place by the children of Heth.
Radak on Genesis
ויקם...מאת בני חת, All the townspeople had agreed to the sale of Efron’s fields to Avraham. They were quite keen for Avraham to own an ancestral plot in their midst.
Sforno on Genesis
מאת בני חת ויקם השדה, these people all agreed to the transaction.