"And indeed, Lot was among the messengers. When We saved him and his family, all of them." He means by his family: his daughters, all of them.
﴿وَإِنَّ لُوطًا لَمِنَ الْمُرْسَلِينَ إِذْ نجيناه وَأَهله أَجْمَعِينَ﴾ يُرِيد بأَهْله: بَنَاته أَجْمَعِينَ]