A man who swears by divorcing his wife over something, and the two disagree

Abd al-A'la was asked about a man who said to his wife: "If I have not given you such-and-such, then you are thrice divorced" — what is the ruling? He said: Sa'id reports the saying of Qatadah: If the man has proof (witnesses), then well and good; otherwise she is irrevocably separated from him.

Ata (may Allah have mercy on him) said: If a man said to his wife: "If I do not spend ten dirhams on you every month, then you are thrice divorced," and the woman claimed: "He has not spent anything on me for three months," then in this case the man's word is accepted, unless the woman establishes proof that he did not spend on her, in which case her word is accepted.

Al-Sha'bi (may Allah have mercy on him) said: A man said to his creditor: "If I do not pay what I owe you before sunset, then my wife is divorced." Then he met him the next day, and the creditor claimed that he had not paid him anything. His wife said to him: "You have divorced me." Then she took the case to al-Sha'bi (may Allah have mercy on him). Al-Sha'bi (may Allah have mercy on him) said: "As for your wife, we leave that to your religious conscience; and as for the man, bring proof that you paid him what was due, or else pay him what is due to him."