Seek permission before doing something , Follow instructions given by prophet muhammad .

This hadith is about Salama b. al-Akwa's visit to al-Hajjaj, where he informed him that he was living in the desert with permission from Prophet Muhammad. This hadith teaches us that it is important to seek permission before doing something, even if it seems small or insignificant. It also shows us how much respect we should have for our elders and those who are in authority over us, as Salama b. al-Akwa' was respectful and humble when speaking to al-Hajjaj despite his migration back into the desert after leaving for a while. Additionally, this hadith highlights how important it is to follow instructions given by Prophet Muhammad as they are always beneficial for us in some way or another, even if we don't understand why at first glance.