Respect other people's privacy and not intrude on their space without permission or invitation.

This hadith is about how the Prophet reacted when an uninvited guest came to his house. The Prophet was in his house when a man looked in at him, so he lunged towards him with an arrow head, so the man backed up. This hadith teaches us that we should not be too welcoming of uninvited guests and that it is important to be cautious of strangers who come into our homes without permission. We should also remember that it is important to respect other people's privacy and not intrude on their space without permission or invitation.