Sa'id ibn al-Musayyib سعيد بن المسيب بن حزن أبو محمد القرشي · The Book of Zakah

"When a woman give charity from her husband's house, she will have a reward, and her husband will have a similar reward, and the storekeeper will have a similar reward, without the reward of any of them detracting from the reward of the others in the slightest. The husband will be rewarded for what he earned and she will be rewarded for what she spent."

"The Messenger of Allah said: 'It is not permissible to give charity to a rich man (or one who is independent of means) or to one who is strong and healthy."'

two men told him, that they came to the Messenger of Allah asking him for charity. He looked from one to the other and he saw that they were strong. The Messenger of Allah said: "If you want, I will give you, but no rich man or one who is strong and able to earn has a share of it."

"If something was brought to him, the prophet would ask whether it was a gift or charity. If it was said that if was charity, he would not eat, and if it was said that it was a gift, he would stretch forth his hand."