It is narrated from Adi bin Adi al-Kindi (may Allah have mercy on him) that the Prophet (peace and blessings be upon him) said: "Whoever swears (falsely) over the property of a Muslim man will meet Allah while He is angry with him." It was said: O Messenger of Allah! And if he gives it up, (what will he get)? He (peace and blessings be upon him) said: "Then Paradise is for him."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14339