The Prophet of Allah ﷺ forbade that a woman be married in addition to her Amtah or her maternal aunt.
حدثنا يونس حدثنا أبان يعني العطار عن يحيى عن أبي سلمة بن عبد الرحمن
أن نبي الله ﷺ نهى أن تتزوج المرأة على عمتها أو على خالتها
Its isnad is sahih. It was mentioned previously in 3530, and similarly in Tirmidhi 3/423, no. 1125, in the Book of Marriage, in the chapter "What Has Been Said About a Woman Not Being Married Along With Her Paternal Aunt," and in Ibn Shayba 4/247, and Tabarani in Al-Kabir 11/337, no. 11931, from Ibn Abbas.