Hazrat Aisha (may Allah be pleased with her) narrates: Whenever the Messenger of Allah (peace and blessings be upon him) saw a dense cloud in any part of the sky, he would leave whatever work he was engaged in, even if he was performing prayer, until he would face it and say: "O Allah! We seek refuge with You from the evil of this cloud which has been sent." If it started to rain, he would say: "O Allah! Make this rain beneficial." He would say this two or three times. If Allah removed the clouds and it did not rain, he would praise and glorify Allah for that.