Questions of the form "What does Islam say about X?" (e.g.) are simply not constructive and should be closed. Unfortunately, many such questions (including the one linked) are not closed and are even upvoted and answered. This practice simply encourages the asking of bad questions.
Such questions are not at all specific enough to be answerable. For example, using the question linked here, I could cite basically any Islamic teaching and have my answer be true. "Islam says that introverts should not eat pork" is a correct answer to that question. Of course, its a useless answer, but if a useless answer correctly answers a question, its because the question is really useless itself.