Yahya related to me from Malik from Yahya ibn Said from Amr ibnShuayb that the Messenger of Allah, may Allah bless him and grant himpeace, said, when he asked for rain, "O Allah, give water to Yourslaves and Your animals, and spread Your mercy, and give life to Yourdead land."
USC-MSA web (English) reference: Book 13, Hadith 2
Arabic reference: Book 13, Hadith 453