Volume 1, Book 7, Number 335:
Narrated Said bin ‘Abdur Rahman bin Abza:
(on the authority of his father who said) ‘Ammar said so (the above Statement). And Shu’ba stroked
lightly the earth with his hands and brought them close to his mouth (blew off the dust) and passed
them over his face and then the backs of his hands. ‘Ammar said, “Ablution (meaning Tayammum
here) is sufficient for a Muslim if water is not available.”
Volume 1 – 90 / 1700
SAHIH BUKHARI VOLUME 1 > BOOK 7: RUBBING HANDS AND FEET WITH DUST (TAYAMMUM)