Volume 2, Book 17, Number 135:
Narrated Abbas bin Tamim
that his uncle (who was one of the companions of the Prophet) had told him, “The Prophet went
out with the people to invoke Allah for rain for them. He stood up and invoked Allah for rain, then
faced the Qibla and turned his cloak (inside out) and it rained.”
Volume 2 – 238 / 1700
SAHIH BUKHARI VOLUME 2 > BOOK 17: INVOKING ALLAH FOR RAIN (ISTISQAA)