It wasnarrated from 'Abdullah bin 'Umar that the Messenger of Allah(ﷺ) said:
"Whatever division of inheritance was made during theIgnorance period, stands according to the division of the Ignoranceperiod, and whatever division of inheritance was made during Islam,itstands according to the division of Islam."
English reference: Vol. 4, Book 23, Hadith 2749
Arabic reference: Book 23, Hadith 2854