The Messenger of Allah ﷺ said: ʿNo woman should be married and become a co-wife to her paternal aunt or her maternal aunt.” (Using translation from Aḥmad 577)
عَنْ رَسُولِ اللهِ ﷺ أَنَّهُ قَالَ «لَا تُنْكَحُ الْمَرْأَةُ عَلَى عَمَّتِهَا وَلَا عَلَى خَالَتِهَا»