A. Yusuf Ali:Translation:
Said (the father): "My (dear) little son! relate not your
vision to your brothers, lest they concoct a plot against
you: 1634 for Satan is to man an avowed
enemy! 1635

Muhammad Asad:Translation:
[Jacob] replied: "O my dear son! 8 Do not relate thy dream to thy brothers lest [out of envy] they devise an evil scheme against thee; verily, Satan is man's open foe! 9
1634 The young lad Yusuf was innocent and did not even know of his brothers' guile and hatred, but the father knew and warned him.
1635 The story is brought up at once to its spiritual bearing. These brothers were puppets in the hands of Evil. They allowed their manhood to be subjugated by Evil, not remembering that Evil was the declared opposite or enemy of the true nature and instincts of manhood.