﴿ قَالُوٓا۟ أَءِنَّكَ لَأَنتَ يُوسُفُ ۖ قَالَ أَنَا۠ يُوسُفُ وَهَٰذَآ أَخِى ۖ قَدْ مَنَّ ٱللَّهُ عَلَيْنَآ ۖ إِنَّهُۥ مَن يَتَّقِ وَيَصْبِرْ فَإِنَّ ٱللَّهَ لَا يُضِيعُ أَجْرَ ٱلْمُحْسِنِينَ ﴾

“They exclaimed: "Why - is it indeed thou who art Joseph?" He answered: "I am Joseph, and this is my brother. God has indeed been gracious unto us. Verily, if one is conscious of Him and patient in adversity behold, God does not fail to requite the doers of good!"”

Please check ayah 12:92 for complete tafsir.