فَلَمَّا رَءَا قَمِيصَهُۥ قُدَّ مِن دُبُرٍ قَالَ إِنَّهُۥ مِن كَيْدِكُنَّ ۖ إِنَّ كَيْدَكُنَّ عَظِيمٌ
Commentary:
The pronoun "he" in the clause, when he saw his shirt, stands for the master of the house and not for the man who bore witness.
The words, Your device is indeed mighty, will thus be taken to have been spoken by Joseph’s master, and the pronoun "your" refers to "women" generally. In his endeavour to screen his wife as far as possible, he appears to accuse the whole of the fair sex of cunning and guile. But cunning is no characteristic of women; only those women who are oppressed and tyrannized over and whose rights are trampled upon generally develop a tendency to conspiring and adopting wily and cunning ways to avenge themselves on their oppressors. Moreover, the words of a man spoken casually cannot be regarded as an established truth and must be treated with reserve.
The pronoun 'he' stands for the master of the house and not for the man who bore witness.
In his endeavour to screen his wife so far as possible Potiphar seems to accuse the whole fair sex of cunning and guile.