Sayyiduna Asmah bin Malik (may Allah be pleased with him) narrates: A slave came to the service of the Prophet (peace and blessings be upon him), and he said: "My master first got me married, now he wants to separate me from my wife." The narrator says: So the Prophet (peace and blessings be upon him) ascended the pulpit and said: "O people! The right to divorce belongs to the one who holds the calf (of the leg)."