He said: "Oh my dear son! You don't reveal your vision to your brothers, then they will plot against you a plan; Indeed Satan is a manifest enemy to mankind.
The dreams of Prophets are considered as Divine Inspirations. Unlike normal mankind as explained in verse 6: 60, the soul of Prophets is not departed during sleep. The interpretation of Yoosuf's dream is: The sun is his father Prophet Yaqoob, the moon is Yaqoob's wife and 11 stars include 10 stepbrothers and his brother Binyamin. Yaqoob knew about the jealousy of stepbrothers towards Yoosuf and Binyamin. As those stepbrothers were not having moral values, they were ready for any satanic deed. So Yaqoob advised Yoosuf to be alert upon these stepbrothers. It is explained in verse 6: 112: "Lord has made Satans from mankind and Jinns enemies for each Prophet". The Arabic Quran reading Mujirims are enemies to all Prophets and believers as told in verse 25: 31. Since Satan serving Mujirims don't transform their Jinn soulmate into a believer with Adhikr, they will die by witnessing against their soul that indeed they were disbelievers as explained in verse 10: 60.
No distress will affect those who keep the remembrance of Lord with Adhikr as explained in verse 2: 152. Since Adhikr-the Safeguard- is codified today, whoever holdfasts It, he did holdfast Lord and is guided into the Straightpath as explained in verses 11: 55-60. See explanation 2: 269; 3: 101-102 and 7: 22.