The correct view in this issue is that he has not broken his oath, neither in divorce nor in manumission. For we have a principle established by the One to whom judgment belongs—Allah, the Exalted. He said concerning the words of the believers: “Our Lord, do not take us to task if we forget or make a mistake” [al-Baqarah 2:286]. He said: “I have done so.” (1) And Allah, the Exalted, says: “There is no blame upon you for what you do by mistake, but only for what your hearts deliberately intend” [al-Ahzab 33:5]. Even an oath which a person utters without intending to contract it counts for nothing. Allah, the Exalted, says: “Allah will not take you to task for thoughtless oaths, but He will take you to task for the oaths you deliberately bind yourselves by” [al-Ma'idah 5:89]. Accordingly, his wife is not divorced by this, nor is his slave manumitted by it. This was the view preferred by Shaykh al-Islam Ibn Taymiyyah, may Allah have mercy on him.
Likewise, if he swears concerning something which he believes to be a certain way but which is not in fact so, then he has not broken his oath—except, according to the school of law, in matters of divorce and manumission. For example, if he says, “If so-and-so has arrived, then my wife is divorced,” believing that he has not arrived, the established position of the school is that his wife is divorced.
The correct view is that she is not divorced, because his case is that of an oath. It is authentically reported that a man said to the Messenger, peace and blessings be upon him, after he told him, “Take this and give it in charity”: “Am I to give it to someone poorer than myself, O Messenger of Allah? By Allah, there is no household between its two lava fields poorer than my own.” (2) He swore to this, but had he searched the houses?! He had not searched them; rather, he swore according to what he believed. Likewise,