[1]

This verse mentions spending in general, without limiting it to supererogatory (nafl) or prescribed (wājib) spending. Spending on any good cause is classed as spending in the way of Allah Almighty, such as helping a scholar or student of knowledge and buying food, clothing, medicine, or other provisions for a poor person.

[2]

Good deeds are equal. However, differences in sincerity, good intention, and attribution can have a great impact on the level of reward attained.