2,687. A Thief AND a Liar!

Hilchos Shevuos 8:10

Let’s say that someone denies stealing an ox, claiming instead that the owner entrusted it to him, hired him to watch it or lent it to him. He then gives the owner his ox. If he took an oath that he was watching or borrowed the ox, he isn’t liable for an oath of deposit because he admitted owing the principle and his oath didn’t absolve him of any obligation.

Hilchos Shevuos 8:11

Similarly, one isn’t liable for an oath of deposit if he takes an oath: (a) that the owner sold him the ox but he hasn’t paid for it yet, accompanied by an offer to give the owner his choice of the ox or payment for it; (b) that the owner gave him the ox as payment for work to be performed, accompanied by an offer to give the owner his choice of the ox or the work; (c) that he found the ox wandering on the road and didn’t know to whom it belonged, followed by him turning the ox over to the owner; or (d) that the ox chased the defendant’s ox, again followed by him returning the ox to its owner. He is, however, liable for an oath of expression because he took a false oath.