Surah Yusuf Tafseer

قَالَ مَعَاذَ اللّهِ أَن نَّأْخُذَ إِلاَّ مَن وَجَدْنَا مَتَاعَنَا عِندَهُ

He said:"Allah forbid, that we should take anyone but him with whom we found our property...",

according to the judgement that you gave for his punishment,

إِنَّـا إِذًا لَّظَالِمُونَ

Indeed, we should be wrongdoers.

if we take an innocent man instead of the guilty man.