قَالَ هَٰٓؤُلَآءِ بَنَاتِىٓ إِن كُنتُمْ فَٰعِلِينَ
[Lot] said, "These are my daughters - if you would be doers [of lawful marriage]."
(He said: Here are my daughters) it is also said that this means: here are the daughters of my people, I will marry you to them, (if ye must be doing (so)) if you want to get married.