Third: that which may neither be sold nor leased.
Land acquired by force may be leased but not sold, except for dwellings. As for Mecca, its property may neither be sold nor leased. All other places, however, may be sold and leased, such as the land of Medina, Jerusalem, and other lands.
His statement, “Nothing other than dwellings from land acquired by force may be sold,” indicates that land and dwellings acquired through a peace settlement may be sold. This is indeed the case, for the land of the enemy is either acquired by force, or acquired through a peace settlement on the condition that it remains theirs and that we allow them to retain it in return for kharaj land-tax, or it is acquired through a peace settlement on the condition that it belongs to us. If it belongs to them, then it is their property and they may dispose of it; and if it belongs to us, then it is our property and we may dispose of it. This applies when it is acquired through a peace settlement; as for land acquired by force, we have already explained its ruling.
“No sale is valid of the water of a well, nor of the pasture or thorns that grow on one’s land; rather, whoever takes them becomes their owner.”
His statement, “No sale is valid of the water of a well”: the water of a well is the water that springs forth from the ground. It is not permissible to sell this water, because the Prophet ﷺ said, “People share in three things: water, pasture, and fire.” (1) Moreover, this water did not emerge through human power, but through the power of Allah. A person may dig a deep well and yet no water comes forth; thus, it is not the result of his labor or action. Rather, he is merely a means. He therefore does not own it, and since he does not own it, it is not valid for him to sell it,