Is it permissible to use the internet at work to extract research and reports and sell them to students, knowing that the cost of the internet at work is fixed and the information is stored and printed at home?

Using the institution's device and its internet to extract research and reports and selling them to students is not permissible unless with the institution's consent, for the Prophet, peace and blessings be upon him, said: "The property of a Muslim person is not lawful except with his willing consent." Likewise, exploiting official work hours for tasks other than those of the institution is not permissible except with its approval. The implicit consent of the institution for these actions is sufficient.