“O you who believe! Ward off from yourselves and your families a Fire (Hell) whose fuel is men and stones, over which are (appointed) angels stern (and) severe, who disobey not, (from executing) the Commands they receive from Allah, but do that which they are commanded.” [Surah At-Tahrim (66) :6]
Here’s an article from Imam Ibn Baaz (rahimahullah) explaining this ayah: The Obligation of Protecting Oneself and the Family from the Fire
An important point regarding this ayah: Allah has mentioned “yourselves” before “your families”. Parents should take note of this. I see so many mothers worried about what their children are doing, yet they fail to take themselves into account first. It’s truly sad.