Sunan Ibn Majah 2748
سنن ابن ماجه#2748SahihIt was narrated that Ibn ‘Umar said:The Messenger of Allah (ﷺ) forbade selling the right of inheritance, or giving it as a gift
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih Lighairihi
Zubair Ali ZaiSahih
In-book reference: 23:30