Rashi on Genesis 19:14/רש"י על בראשית י״ט:י״ד

1חתניו SONS- IN-LAW — he had two married daughters in the city (Genesis Rabbah 50:9).

2לוקחי בנותיו THOSE WHO WERE MARRYING HIS DAUGHTERS — those to whom his daughters at home were betrothed (Genesis Rabbah 50:9).