Narrated Abu Sa'eed Al-Khudri: that the Prophet ﷺ said: "Therein they will grin, with displaced lips. (23:103) - he said - "He will be broiled by the Fire, such that his upper lip will shrink until it reaches the middle of his head, and his lower lip will droop until it is near his navel".
The Prophet ﷺ also taught us that we should always strive to spread knowledge about Islam so that others may also benefit from it, as knowledge is one of the greatest gifts we can give someone else. We should also remember that no matter how much knowledge we have, if our actions are not based on faith then it will all be for nothing. Therefore, it is important for us to ensure that our beliefs are strong enough so that they guide our actions towards righteousness and piety.