Abdullah bin Abbas (may Allah be pleased with them both) narrates that a man had a wife who had given birth to two of his children, and that woman used to cause harm to the Prophet Muhammad (peace be upon him). The man would stop her, but she would not desist. He tried to frighten and threaten her, but she was not afraid. One day, that woman said something inappropriate about the Prophet Muhammad (peace be upon him), so her husband took a spade, placed it on her stomach, and pressed down until the spade passed through her body (and the woman died). So the Prophet Muhammad (peace be upon him) said: "Bear witness, her blood is wasted (i.e., there is no retribution for her killing)."

This narration is transmitted with another chain of transmission.

The same narration is reported from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both), however, in it are these words: That man said: The other day, this woman began to speak ill of you and showed disrespect towards you, so I killed her. The Noble Prophet (peace and blessings be upon him) said: "Bear witness, all of you, that the blood of this woman is wasted." Imam Daraqutni has stated that from this, the Sunnah is established that while passing a judgment, a ruler may make people witnesses regarding his own self.