Some slaves (of the unbelievers) went out to the Messenger of Allah (ﷺ) on the day of al-Hudaybiyyah before treaty. Their masters wrote to him saying: O Muhammad, they have not gone out to you with an interest in your religion, but they have gone out to escape from slavery. Some people said: They have spoken the truth, Messenger of Allah, send them back to them. The Messenger of Allah (ﷺ) became angry and said: I do not see your restraining yourself from this action), group of Quraysh, but that Allah send someone to you who strike your necks. He then refused to return them, and said: They are emancipated (slaves) of Allah, the Exalted.
He (the Prophet) commanded regarding the two men and the woman who spoke obscenity were Hassan ibn Thabit and Mistah ibn Uthathah. An-Nufayl said: It is said that the woman was Hammah daughter of Jahsh.
If anyone says in the morning: “O Allah! whatever oath I take, whatever word I speak, and whatever vow I take, Thine will precedes all that: whatever Thou willeth, occurs, and whatever Thou dost not will, dost not occur. O Allah! pardon me and disregard me for it. O Allah! whomsoever Thou sendest thine blessing, to him my blessing is due, and whomsoever thou cursest, to him my curse is due, ” exemption from it will be granted to him that day.