Rashi on Genesis 31:18/רש"י על בראשית ל״א:י״ח

1מקנה קנינו means — what he had purchased by means of קנינו his own property i.e. his sheep, viz., menservants, maidservants, camels and asses (Genesis Rabbah 74:5; cf. Rashi on Genesis 30:43).