Muhammad bin Umar bin Ali bin Abi Talib (may Allah have mercy on him) says that Sayyiduna Ali (may Allah be pleased with him) did not begin fighting at the Battle of the Camel until he had spent three days calling the people (to peace). When the third day came, Sayyiduna Hasan, Sayyiduna Husayn and Sayyiduna Abdullah bin Ja'far (may Allah be pleased with them) came to him and said: Our wounded are becoming many. He (may Allah be pleased with him) said: O nephew, I see it all. Bring me water. Then he (may Allah be pleased with him) performed ablution and prayed two rak'ahs. Then he raised his hands and supplicated to his Lord, and then said to them: If (Allah) gives you victory over these people, do not pursue anyone who turns his back to flee, do not finish off any wounded man, and take possession of whatever vessels were brought to the battle; whatever is besides that belongs to their heirs.
This is munqati' (broken); and what is correct is that he took nothing at all from them and did not strip any slain man.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب قتال أهل البغي / 16744