'A'isha said, "When the Prophet, may Allah bless him and grant him peace, saw a cloud in the sky, he would get up and down and walk to and fro, and his face would change colour. When it rained, that would leave him." When A'isha commented on that, the Prophet, may Allah bless him and grant him peace, said, "I do not know. Perhaps it will be as Allah Almighty says: 'When they saw it as a storm cloud advancing on their valleys...' (46:24)"