Abu Umamah (رضي الله عنه) reports that the Nabi of Allah ﷺ said:

”Four people whom Allah SWT cursed and the Angels said aameen to ... are ones who:

mislead the needy;
deceive a blind person by misdirecting him to a well, or lie to him that an animal is in front him;
give a wrong address to another person; and
beat up their parent/s until they (the parent/s) complain to Allah SWT.”

Benefits of providing water

Providing water to a thirsty person or those in need of it is a special form of charity having much reward. Water is the source of life and to give water is likened to giving life. Nabi (sallallahu alayhi wa sallam) said “The best form of sadaqah is giving someone water.” (Ibn Majah)
Great virtues have been cited for providing water and creating water generating facilities that become a means of perpetual reward and benefit the donor in this life and after death.