Abu Hurairah (RAA) narrated that The Messenger of Allah (ﷺ) said:
"Give Sadaqah." A man then said, 'Allah's Messenger (ﷺ), I have a Dinar.' He then said to him, "Give it to yourself as Sadaqah." The man again said, 'I have another one.' The Messenger of Allah (ﷺ) said: "Give it to your children as Sadaqah." He said, 'I have another one.' He said, "Give it to your wife as Sadaqah." The man again said, 'I have another one.' The Messenger of Allah (ﷺ) said: "Give it to your servant as Sadaqah." He said, 'I have another one.' The Messenger of Allah (ﷺ) said: "You know better to whom you should give it." Related by Abu Dawud and An-Nasa'i. Ibn Hibban and Al-Hakim regarded it as Sahih.
English reference: Book 4, Hadith 657
Arabic reference: Book 4, Hadith 636