Qur'an 4:22

وَلَا تَنكِحُوا۟ مَا نَكَحَ ءَابَآؤُكُم مِّنَ ٱلنِّسَآءِ إِلَّا مَا قَدْ سَلَفَ ۚ إِنَّهُۥ كَانَ فَـٰحِشَةً وَمَقْتًا وَسَآءَ سَبِيلًا

“And do not marry those [women] whom your fathers married, except what has already occurred. Indeed, it was an immorality and hateful [to Allāh] and was evil as a way.”

An-Nisaa 4:22 · Saheeh International