Guiding female da'iyah to call people to Allah by calling for plural marriage

Question:
Your Eminence! If the woman who calls to Allah gives sincere advice in the manner you have mentioned, if she does this for married sisters, perhaps it will have an effect?

Answer:
Yes, yes. I advise the women who call to Allah, the students, and the scholars; I advise them all to fear Allah and to research this topic extensively. They should guide people to what Allah has guided them to, advise their sisters of this matter, and explain to them the benefits and advantages it contains. They should be a support for believing husbands in this beneficial and useful project for both men and women. The words of a believing da'iyah and a believing guide may have a greater effect on their sisters in Allah than the words of a man.
So I advise all students of knowledge, all teachers, and all those who have knowledge to help in this matter and to guide people, so that they will have much good thereby. Allah is the One to be sought for help. Yes.

The presenter: And Allah is the Helper, may Allah reward you with good.