Divorce
Malik :: Book 29 : Hadith 29.1.4
Yahya related to me from Malik from Ibn Shihab that Marwan ibn al-Hakam decided that if someone made three pronouncements of divorce, he had divorced his wife irrevocably.
Malik said, "That is what I like best of what I have heard on the subject."
29.2 Divorce by Euphemistic Statements