וַיַּצֵּ֣ב אַבְרָהָ֗ם אֶת־שֶׁ֛בַע כִּבְשֹׂ֥ת הַצֹּ֖אן לְבַדְּהֶֽן׃
And Abraham set seven ewe-lambs of the flock by themselves.
Targum Jonathan on Genesis
And Abraham set seven lambs apart and separated them from the oxen.
וַיַּצֵּ֣ב אַבְרָהָ֗ם אֶת־שֶׁ֛בַע כִּבְשֹׂ֥ת הַצֹּ֖אן לְבַדְּהֶֽן׃
And Abraham set seven ewe-lambs of the flock by themselves.