﴿ إِذْ قَالُوا۟ لَيُوسُفُ وَأَخُوهُ أَحَبُّ إِلَىٰٓ أَبِينَا مِنَّا وَنَحْنُ عُصْبَةٌ إِنَّ أَبَانَا لَفِى ضَلَٰلٍۢ مُّبِينٍ ﴾

“NOW [Joseph's brothers] spoke [thus to one another:] "Truly, Joseph and his brother [Benjamin] are dearer to our father than we, even though we are so many. Behold, our father is surely suffering from an aberration!"”

Please check ayah 12:10 for complete tafsir.