﴿ وَقَالَ لِلَّذِى ظَنَّ أَنَّهُۥ نَاجٍۢ مِّنْهُمَا ٱذْكُرْنِى عِندَ رَبِّكَ فَأَنسَىٰهُ ٱلشَّيْطَٰنُ ذِكْرَ رَبِّهِۦ فَلَبِثَ فِى ٱلسِّجْنِ بِضْعَ سِنِينَ ﴾

“And [thereupon Joseph] said unto the one of the two whom he considered saved: "Mention me unto thy lord [when thou art free]!" But Satan caused him to forget to mention [Joseph] to his lord, and so he remained in prison a few [more] years.”

Then he said to the one whom he deemed whom he was certain would be saved of the two — and this was the cup-bearer ‘Mention me to your lord’ your master and say to him ‘There is a young man in jail who has been wrongly imprisoned’. So he the cup-bearer departed but Satan caused him that is the cup-bearer to forget the mention of Joseph before his master so that he Joseph stayed he remained in prison for some years it is said that he remained for seven years or for twelve.