What lies did Li Kui jy tell Song Jiang?

Li Kui jy lost the gambling and was making a scene downstairs. Dai Zhong and Song Jiang, who were drinking upstairs, heard him. Li Kui jy was called upstairs by Dai Zhong and introduced to Sung River. Sung river asked him why he made a scene at the bottom of the building, so he lied and said that he borrowed twelve taels of silver to redeem one of his ingots. See Chapter 37 of Water Margin for details.