In the time of the Prophet (ﷺ) a man took a vow to slaughter a camel at Buwanah. So he came to the Prophet (ﷺ) and said: I have taken a vow to sacrifice a camel at Buwanah. The Prophet (ﷺ) asked: Did the place contain any idol worshipped in pre-Islamic times? They (the people) said: No. He asked: Was any pre-Islamic festival observed there? They replied: No. The Prophet (ﷺ) said: Fulfil your vow, for a vow to do an act of disobedience to Allah must not be fulfilled, neither must one do something over which a human being has no control.
I went out with my father to see the hajj performed by the Messenger of Allah (ﷺ). I saw the Messenger of Allah (ﷺ). I fixed my eyes on him. My father came near him while he was riding his she-camel. He had a whip like the whip of scribes. I heard the bedouin and the people say: The whip, the whip. My father came near him and held his foot. She said: He admitted his Prophethood and stood and listened to him. He said: Messenger of Allah, I have made a vow that if a son is born to me, I shall slaughter a number of sheep at the end of Buwanah in the dale of hill. The narrator said: I do not know (for certain) that she said: Fifty (sheep). The Messenger of Allah (ﷺ) said: Does it contain any idol? He said: No. Then he said: Fulfil your vow that you have taken for Allah. He then gathered them (i.e. the sheep) and began to slaughter them. A sheep ran away from them. He searched for it saying: O Allah, fulfil my vow on my behalf. So he succeeded (in finding it) and slaughtered it.
“No one of you should withhold surplus water from common pastureland.”
“Surplus water should not be withheld, and neither should surplus water from a well.