It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "A man's spending on his family is charity (sadaqah)."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Abd al-Mu'min (may Allah have mercy on him) except Muhammad (may Allah have mercy on him)."