And Imam Hasan al-Basri did not consider the establishment of wala’ (allegiance) with it to be correct, and the Prophet (peace and blessings of Allah be upon him) said that wala’ will be established with the one who sets free. And it is narrated from Tamim bin Aws ad-Dari, he narrated marfu‘ (attributed to the Prophet) that he (the master) has the most right over him in both life and death among all people, but there is a difference of opinion regarding the authenticity of this hadith.

Narrated Ibn `Umar: That Aisha, the mother of the Believers, intended to buy a slave girl in order to manumit her. The slave girl's master said, "We are ready to sell her to you on the condition that her Wala should be for us." Aisha mentioned that to Allah's Apostle who said, "This (condition) should not prevent you from buying her, for the Wala is for the one who manumits (the slave)."