Musannaf Ibn Abi Shaybah 20236 — One who says to his wife: you are

Sa'd bin Ibrahim said: A man said to his wife, "You are divorced." He asked Salim (may Allah have mercy on him) and al-Qasim (may Allah have mercy on him) about it, and they said: Our view is that he should be made to swear that he did not intend an irrevocable (battah) divorce.