Sad 38:42

<h2>Ayyub</h2><p>Here Allah tells us about His servant and Messenger Ayyub (Job) and how He tested him. These tests afflicted his body, his wealth and his children, until there was no part of his body that was healthy except his heart. Then he had nothing left in this world which he could use to help him deal with his sickness or the predicament he was in, besides his wife, who retained her devotion to him because of her faith in Allah and His Messenger. She used to work for people as a paid servant, and she fed and served him (Ayyub) for nearly eighteen years. Before that, he was very rich and had many children, being well off in worldly terms. All of that had been taken away until he ended up being thrown into the city dump where he stayed all this time, shunned by relatives and strangers alike, with the exception of his wife -- may Allah be pleased with her. She did not leave him, morning and evening, except for when she was serving people, then she would come straight back to him. When this had gone on for a long time, and things had gotten very bad, …

(And it was said unto him): Strike the ground with thy foot. This (spring) is a cool bath and a refreshing drink.

(The command was given:) "Strike with thy foot: here is (water) wherein to wash, cool and refreshing, and (water) to drink."

(Allah said to him): "Strike the ground with your foot: This is a spring of water to wash in, cool and a (refreshing) drink."

“Stamp with your foot—here is cool water to wash with, and to drink.”