Abdullah bin Yazid bin Rukanah narrated from his father, from his grandfather who said:'O Messenger of Allah! I irrevocably divorced my wife.' So he said: 'What did you intend by that?' I said: 'One (divorce).' He said: '(Do you swear) By Allah?' I said: 'By Allah.' He said: 'Then it is as you intended

English translation · Jami' at-Tirmidhi