Abd Khayr (may Allah have mercy on him) says: Sayyiduna Ali (may Allah be pleased with him) was asked about the people of the Camel, and he said: They were our brothers who rebelled against us; they returned, and we accepted (it from them).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب قتال أهل البغي / 16752