Musannaf Ibn Abi Shaybah 20332 — A man who swears by divorcing

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.