What should a woman do if she sees women who are not modest at a wedding?

Question:
May Allah reward you. The questioner says: My wife was invited to a wedding feast at her relatives' home, and she found some women wearing clothes that were almost naked. What should she do? Should she advise them and stay, or should she leave that place?

Answer:
It is obligatory to give advice and forbid what is wrong. If they comply and wear clothes that cover them, and we cover ourselves, she stays. But if they remain in their state, she should advise them and leave; she does not stay with them. This is a calamity now. The reality is that Muslim women and the daughters of Muslims have slipped, except for those whom Allah has shown mercy. They have slipped along with these fashions.
Especially at parties, they have slipped and the women have exposed themselves, in most of their bodies. Even the clothes sold in the markets now are not modest and do not cover. A woman who wants to buy clothes for covering cannot find them now. The calamity is great. It is obligatory for Muslims to reconsider and to stop imitating the foreigners, imitating the disbelievers. Let them be modest with the modesty and dignity that Allah has clothed them with, because it is for their benefit. This is not a matter of restriction or severity. This is a matter of benefit for the servants. This is their benefit. So they should turn to Allah, be modest, wear covering clothes, and purify their gatherings. They should forbid what is wrong in those who are not modest and those who do not cover themselves, forbidding them to the utmost extent. As for silence, that is what has destroyed the people. That is what has destroyed the people. And the open sinners and the lax ones have proceeded in their manner to what they have fallen into. Yes.