وَجَآءَ إِخۡوَةُ يُوسُفَ فَدَخَلُواْ عَلَيۡهِ فَعَرَفَهُمۡ وَهُمۡ لَهُۥ مُنكِرُونَ ٥٨
And the brothers of Joseph came [seeking food], and they entered upon him; and he recognized them, but he was to them unknown.1
Translation: Saheeh International (English)
1 Due to the change in his appearance over the years.
Each word's meaning and sound
The brothers of Joseph came to Egypt with their merchandise, and came before Joseph. He recognised that they were his brothers; but they did not recognise that he was their brother, because of the length of time that had passed and because of how much he had changed, since he had been just a boy when they threw him in the well.
Al-Mukhtasar in interpreting the Noble Quran