Some of the companions of the Prophet ﷺ said to him, "Messenger of Allah, the wealthy have taken away all the rewards. They pray as we pray, they fast as we fast, and they give charity from the surplus of their wealth."He replied, "Has Allah not given you things by which you may give charity? Every utterance of 'Subhan Allah' is charity, every 'Allahu Akbar' is charity, every 'Alhamdulillah' is charity, and every 'La ilaha illa Allah' is charity. Enjoining good is charity, forbidding evil is charity, and in the intimacy of one of you with his wife there is charity."They asked, "Messenger of Allah, when one of us fulfills his desire, does he receive a reward for it?"He answered, "Tell me, if he had placed it in something forbidden, would he not have borne a sin for it? In the same way, when he places it in what is lawful, he earns a reward."
أن ناسا من أصحاب النبي ﷺ قالوا للنبي ﷺ: يا رسول الله ذهب أهل الدنور بالأجور يصلون كما نصلي ويصومون كما نصوم ويتصدقون بفضول أموالهم؟ قال: أو ليس قد جعل الله لكم ما تصدقون؟ إن بكل تسبيحة صدقة، وكل تكبيرة صدقة، وكل تحميدة صدقة، وكل تهليلة صدقة، وأمر بالمعروف صدقة، ونهي عن منكر صدقة، وفي بضع أحدكم صدقة. قالوا: يا رسول الله أيأتي أحدنا شهوته ويكون له فيها أجر؟ قال: أرأيتم لو وضعها في حرام أكان عليه فيها وزر؟ فكذلك إذا وضعها في الحلال كان له أجرا.
Muslim narrated it in the Book of Zakat (1006), "Abdullah bin Muhammad bin Asma Dubai narrated to us, Mahdi bin Maymun narrated to us, Wasil the freedman of Abu Uyayna narrated to us, from Yahya bin Aqeel, from Yahya bin Yamar, from Abu Aswad Deeli, from Abu Dharr."He also narrated it in the Book of Prayer (820) through this same route, and added in it, "Two rakahs performed during Duha suffice for that."As for his saying, "the people of wealth," duthur is the plural of dathr, meaning abundant wealth.