question #1 Sahih al-Bukhari 2169, Book 34, Hadith 120 : What is the significance of the concept of Wala’ in Islamic law regarding the manumission of slaves?

Aisha, (mother of the faithful believers) wanted to buy a slave girl and manumit her, but her masters
said that they would sell her only on the condition that her Wala’ would be for them. `Aisha told
Allah’s Messenger (ﷺ) of that. He said, “What they stipulate should not hinder you from buying her, as the
Wala’ is for the manumitted.”