Sleeping in the Masjid

Narrate Sahl bin Sa’d (R.A): Allah’s Messenger went to Fatima (R.A) house but did not find Ali (R.A) there, so he asked “where is your cousin?” she replied “there was somthing between us and he got angry with me and went out. He did not sleep (mid-day nap) in the house.” Prophet (S.A.W) asked a person to look for him that person came and said “O Allah’s Messenger! He (Ali R.A)) is sleeping in the mosque.” Prophet (S.A.W) went there and Ali (R.A) was lying. His rida (upper body sheet cover) had fallen down to one side of his body and he was covered in dust. Prophet (S.A.W) started cleaning the dust from him saying, “Get up! Oh Abu Turab. Get up! O Abu Turab” (Abu Turab literally means father of dust)