Abu Dharr RA reported: Some people said to
Messenger of Allah (sallallaahu ’alayhi wa
sallam): "O Messenger of Allah, the rich have
taken away (all the) reward. They observe Salat
(prayers) as we do; and give Sadaqah (charity)
out of their surplus wealth." Upon this he (the
Prophet (sallallaahu ’alayhi wa sallam)) said, "Has
Allah not prescribed for you (a course) following
which you can (also) give Sadaqah? In every
declaration of the glorification of Allah (i.e.,
saying Subhan Allah) there is a Sadaqah, and in
every Takbir (i.e., saying Allahu Akbar) is a
Sadaqah, and in every celebration of praise
(saying Al-hamdu lillah) is a Sadaqah, and in
every declaration that He is One (La ilaha illallah)
is a Sadaqah, and in enjoining of good is a
Sadaqah, and in forbidding evil is a Sadaqah, and
in man's sexual intercourse (with his wife) there
is a Sadaqah." They (the Companions) said: "O
Messenger of Allah, is there reward for him who
satisfies his sexual need among us?" He said,
"You see, if he were to satisfy it with something
forbidden, would it not be a sin on his part?
Similarly, if he were to satisfy it legally, he should
be rewarded." (Muslim)