Pesach - Saying Ma Nishtanah: Who Asks and Who Repeats - מה נשתנה

From Rulings and insights from the Lubavitcher Rebbe - Rabbi Chaim Wolosow by R Chaim Wolosow.

The Rebbe explains the Chabad custom that after the child asks Ma Nishtanah, others—including the leader—repeat it, based on the Rambam. The youngest child, boy or girl, should ask, emphasizing participation and honoring parents. https://www.torahrecordings.com/shulchan_menachem/orach_chayim/237