Abdullah ibn Yazid ibn Rukanah reported on the authority of his father from his grandfather that he said that he went to the Prophet and said, “0 Messenger of Allah! I have divorced my wife (the divorce) albattah.” He asked. “What did you intend by that?” He said, ‘One pronouncement.” He asked, “By Allah?” He answered, “(Yes), by Allah!” So, the Prophet (SAW) said, “And that is as you had intended.” (only one is reckoned).
[Abu Dawud 2208, Ibn e Majah 2051]