Abu Huraira reported God’s messenger as saying,
“When a woman gives something her husband has earned without being commanded by him to do so, she has half his reward.”
‘A’isha reported God’s messenger as saying,
“When a woman gives some of the food in her house, not wasting it, she will have her reward for what she has given and her husband will have his for what he earned. The same applies to a storekeeper. In no respect does the one diminish the reward of the other.”
Abu Musa al-Ash'ari reported God’s messenger as saying,
“The faithful Muslim storekeeper who gives what he is commanded completely and in full with a good will, and delivers it to the one to whom he was told to give it, is one of the two* who give sadaqa.”