Pastor Oyedepo Says Not Tithing Invokes Financial Curse - Your View!

Pastor Oyedepo hammered on the importance of tithing and I have nothing against tithing but i just want to know if there is any Bible passage that backs up this curse (for those who will argue)......... What does he mean by Financial curse?If someone is already under a financial curse,how will they pay their tithes?Is it right for a Pastor to concentrate on this aspect of winning souls for via IFTTT