While a man was walking on his way home, he became extremely thirsty. He found a well, then he went down into it to drink the water.
Upon leaving the well, he saw a dog which was panting out of thirst. His tongue was lolling out and he was eating moist earth from extreme thirst. The man thought to himself: "This dog is extremely thirsty as I was." So he descended himself into the well, filled up his leather sock with water, and holding it in his teeth, climbed up and quenched the thirst of the dog. Allah forgave him in appreciation of this act and admitted him to Jannah.
In Hadith: A companion asked, "Shall we be rewarded for showing kindness to the animals also?" Rasullullah (S.A.W) said, "A reward is given in connection with every living creature."
[Al-Bukhari and Muslim].
May Allah forgive all of our sins..