Before adoption, the adopter must be responsible. On the authority of Abu Hurairah, may God be pleased with him, that the Messenger of God, may God’s prayers and peace be upon him, said: "While a man was walking on a road, he was overcome by thirst. He found a well and descended into it and drank. Then he came out and saw a dog panting and eating the dirt out of thirst. He said: This dog has been afflicted by thirst as I was. So he descended into the well and filled his shoe with water, then he held it in his mouth until he climbed up and gave the dog a drink. So God thanked him and forgave him." They said: O Messenger of God, do we have a reward for these animals? He said: "There is a reward for every moist liver."