Translation of the verse 17 from Surah Yusuf : Number of verses 111 - - page 237 - Part 12.
They said:"O our father! We went racing with one another, and left Yusuf (Joseph) by our belongings and a wolf devoured him; but you will never believe us even when we speak the truth."
They said, "O our father, indeed we went racing each other and left Joseph with our possessions, and a wolf ate him. But you would not believe us, even if we were truthful."
(12:17) and said, "O father! we were absorbed in running races, and we had left Joseph with our things, when a wolf came and devoured him: but you will never believe us, even though we were truthful".