Lady Aisha (may Allah be pleased with her) narrates that the owners of Lady Barirah (may Allah be pleased with her) set the condition of wala (right of inheritance). They asked the Prophet Muhammad (peace and blessings be upon him) about freeing Barirah (may Allah be pleased with her), so the Prophet Muhammad (peace and blessings be upon him) said: The right of wala belongs only to the one who sets free.