It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that, concerning the saying of Allah Almighty: "O you who believe, do not consume one another's wealth unjustly, except that it be trade by mutual consent among you" [Surah al-Nisa: 29], he said: This verse is muhkam (decisive); it has not been abrogated.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10025