Whoever sees that he is digging in a land, let him look at that door and find what he saw because we mentioned the land and what is related to it, and as for the filling, it is on top, and the mention of filling the graves and digging in its chapters and gates has already been mentioned, and as for the filling of what is mentioned here from the different types, it is a return to something, and it was said Excavation is a travel and the backfill is a residence, and there is no good in the one who sees the fill if it is weak or sick .