Maliks Muwatta Book 29, Hadith Number 13.
Section : Circumstances in Which only One Pronouncement of Divorce Permitted in Giving Wives Right of Divorce.
Yahya related to me from Malik from Abd ar-Rahman ibn al-Qasim from his father that a man of Thaqif gave his wife command over herself, and she said, “You are divorced.” He was silent. She said, “You are divorced.” He said, “May a stone be in your mouth.” She said, “You are divorced.” He said, “May a stone be in your mouth.” They argued and went to Marwan ibn al-Hakam. He took an oath that he had only given her control over one pronouncement, and then she returned to him.
Malik said that Abd ar-Rahman declared that this decision had amazed al-Qasim, who thought it the best that he had heard on the subject.
Malik added, “That is also the best of what I have heard on the subject.”