56 - It was narrated from Sa‘d ibn Abi Waqqas that the Messenger of Allah (blessings and peace of Allah be upon him) said: “You will never spend anything, seeking thereby the pleasure of Allah, but you will be rewarded for it, even [the food] that you put in your wife’s mouth.”.

Commentary : Having a good intention in every action is very important, and no act of Islamic worship is valid or will be accepted unless it is accompanied by a sound intention. Even ordinary actions, if they are accompanied by a good intention, will bring reward.
In this hadith, the Prophet (blessings and peace of Allah be upon him stated that reward is not limited to giving money in charity to others; rather whatever you spend on yourself, your family and others, if it is intended to seek the pleasure of Allah (may He be exalted), and is not done in order to show off or seek a good reputation, will bring reward. Whatever is intended for the sake of Allah will be rewarded, even if the doer feels some kind of pleasure and the like in doing it, such as putting a morsel of food into his wife’s mouth. That is something that is usually done for what one feels of pleasure, and if reward is assured in such a scenario, then reward will definitely be more appropriate when an action is done purely for the sake of Allah.
This hadith also indicates that a good intention turns an ordinary action into an act of worship, so the wise person should not do anything without intending to seek the pleasure of Allah (may He be exalted) thereby..