Abu Hurairah reported The Messenger of Allah (ﷺ) as saying When a woman gives something her husband has earned without being commanded by him to do so, she has half his reward.
Sunan Abi Dawud Book 9, Hadith 132
← Previous Hadith Sa’d said When the Messenger of Allah (SWAS) took the oath of allegiance from woman, a woman of high rank, who seemed to be one of the women of Mudar, rose and said Prophet of Allah (SWAS), we are dependant on our parents, our sons. (Abu Dawud said I think (this version) has the word “ and our husbands”. ) So what part of their property can be spent lawfully? He said Fresh food which you eat and give as a present.

Abu Dawud said The Arabic word ratb means bread, vegetables and fresh dates.

Abu Dawud said Al-Thawri transmitted from Yunus in a similar manner.

Sunan Abi Dawud Book 9, Hadith 131 Next Hadith → ‘Ata said Abu Hurairah was asked Whether a woman could give sadaqah from the house (property) of her husband. He replied `No’. She can give it from her maintenance. The reward will be divided between them. It is not lawful for her to give sadaqah from her husband’s property without his permission.

Abu Dawud said This version weakens the version narrated by Hammam (bin Munabbih).

Sunan Abi Dawud Book 9, Hadith 133