Sayyidina Abdullah ibn Mas’ud (RA) narrated: Allah’s Messenger (SAW) said, “If anyone takes a false oath to appropriate a Muslims property then (on the Day of Resurrection) he will meet Allah while He is angry with him.” Sayyidina Ash’ath said “This was about me. By Allah, indeed that was between me and a man among the Jews, a piece of land (that we held together). But, he disowned me. So, I took him to the Prophet ‘‘ who asked me, ‘Do you have a witness?’ 1 said, ‘No.’ He asked the Jew to take an oath, but I interrupted, ‘0 Messenger of Allah he will take an oath and go away with my property.’ On that occesion, Allah revealed: Surely those who barter Allah’s covenant and their oaths, for a small price (3:77 to the end)
[Bukhari 1176, Muslim 138, Tirmidhi 3007, Abu Dawud 3243, IM2323, Ahmed 4049]