וַיֹּ֖אמֶר יַעֲקֹ֑ב מִכְרָ֥ה כַיּ֛וֹם אֶת־בְּכֹֽרָתְךָ֖ לִֽי׃
Иаков сказал: 'Продай мне сначала свое право рождения.'
Targum Jonathan on Genesis
And Jakob said, Sell today, as (on this very) day, what thou wouldst hereafter appropriate, thy birthright, unto me.