It is narrated from Umm al-Mu’minin Aisha (may Allah be pleased with her) that when she intended to buy (and free) Barirah, the family of Barirah set the condition of wala’ (inheritance). The Prophet (peace and blessings of Allah be upon him) said:“The right of wala’ (inheritance) belongs to the one who pays the price or owns the favor of freeing.” Imam Tirmidhi says:
1- This hadith is hasan sahih,
2- In this chapter, hadiths have also been narrated from Ibn Umar and Abu Hurairah (may Allah be pleased with them),
3- The people of knowledge act upon this.