Volume 1, Book 12, Number 717:
Narrated Anas bin Malik:
The Prophet said, “What is wrong with those people who look towards the sky during the prayer?”
His talk grew stern while delivering this speech and he said, “They should stop (looking towards the
sky during the prayer); otherwise their eye-sight would be taken away.”
Volume 1 – 178 / 1700
SAHIH BUKHARI VOLUME 1 > BOOK 12: CHARACTERISTICS OF PRAYER