The open spaces in front of houses

Iyas bin Mu'awiyah used to say: The people of the houses have the greater right to the open space in front of their houses, and the owners of lands have the greater right to the debris of structures on their lands.

It is narrated from Qatadah that Umar bin Abd al-Aziz (may Allah have mercy on him) wrote: "Whoever gains mastery over the water in respect of anything, it belongs to him."