“[If she] impairs her kesubah” —- how? [If] her kesubah was a thousand zuz, and he said to her: “You have received your kesubah,” and she says: “I have received only a hundred,” she is not paid, except with an oath.  “[If] one witness testifies against her that it is paid” —- how? [If] her kesubah was a thousand zuz, and he said to her: “You have received your kesubah,” and she says: “I have not received [it],” and one witness testifies against her that it is paid, she is not paid, except with an oath.  “From assigned property” —- how? [If] he sold his property to others, and she seeks to be paid by the purchasers, she is not paid, except with an oath.  “From the property of orphans” —- how? [If] he died, and left his property to orphans, and she seeks to be paid by the orphans, she is not paid, except with an oath.  “Or in his absence” —- how? [If] he went over-seas, and she seeks to be paid in his absence, she is not paid, except with an oath. R’ Shimon says: Whenever she claims her kesubah, the heirs can impose an oath upon her; but if she does not claim her kesubah, the heirs cannot impose an oath upon her.