Narrated Ibn `Umar
When Aisha intended to buy Barira, she said to the Prophet, "Barira's masters stipulated that they will have the Wala." The Prophet (ﷺ) said (to Aisha), "Buy her, as the Wala is for the one who manumits."
Narrated Aisha
Allah's Messenger (ﷺ) said, "The wala is for the one who gives the silver (pays the price) and does the favor (of manumission after paying the price).