Do'nt ask useless questions---The safety is in not to question

O you who believe! Ask not about things which, if made plain to you, may cause you trouble. But if you ask about them while the Qur'ân is being revealed, they will be made plain to you. Allâh has forgiven that, and Allâh is Oft¬Forgiving, Most Forbearing.

Before you, a community asked such questions, then on that account they became disbelievers.

Al maeda 101-102