(Arab., ‘sound’). Title (al-
a
) given to the two major collections of
ad
th
, of
al-Bukh
r
and
Muslim
.
Sahl al-Tustar
, Ab
Mu
ammad
(818–96 (AH 203–83))
. Sunn
theologian and mystic, of strict and ascetic standards. He wrote nothing, but his ‘thousand sayings’ were collected and edited by his pupil, Mu
ammad ibn S
lim, and formed the basis for a theological school, the S
lim
ya. An eclectic in his views, he agreed with
al-Ash‘ar
that a Muslim is anyone who prays facing the
qibla
(see IM
N), but he accepted the Sh
‘a claim of
jafr
. Faith must nevertheless be demonstrated in works (‘to love is to obey’), while the true lover of God is constantly detaching himself from the world.