Surah Yusuf (12:72)

قَالُوا۟ نَفْقِدُ صُوَاعَ ٱلْمَلِكِ وَلِمَن جَآءَ بِهِۦ حِمْلُ بَعِيرٍ وَأَنَا۠ بِهِۦ زَعِيمٌ

They said, “We are missing the king’s measuring-cup, and whoever brings it will have a camel-load [as reward], and I am its guarantor.”