Volume 1, Book 10, Number 514:
Narrated Abu Dhar Al-Ghifar:
We were with the Prophet on a journey and the Mu’adhdhin (call maker for the prayer) wanted to
pronounce the Adhan (call) for the Zuhr prayer. The Prophet said, ‘Let it become cooler.” He again
(after a while) wanted to pronounce the Adhan but the Prophet said to him, “Let it become cooler till
we see the shadows of hillocks.” The Prophet added, “The severity of heat is from the raging of the
Hell-fire, and in very hot weather pray (Zuhr) when it becomes cooler.”
Volume 1 – 133 / 1700
SAHIH BUKHARI VOLUME 1 > BOOK 10: TIMES OF THE PRAYERS