Abu Hurairah (RAA) narrated that The Messenger of Allah (ﷺ) was asked, 'Which kind of Sadaqah is better? He replied, "That which is given by one who does not have much property. And begin by giving to your dependents." Related by Ahmad, and Abu Dawud. Ibn Khuzaimah, Ibn Hibban and AI-Hakim graded it as Sahih.
English reference: Book 4, Hadith 656
Arabic reference: Book 4, Hadith 635