Sayyiduna Habib bin Maslamah (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) used to give a third of the wealth after the khumus. In the narration of al-Zubayri: The Messenger of Allah (peace and blessings be upon him) used to give a third, I think after the khumus, and then he would give out the rest as well.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب قسم الفيء والغنيمة / 12807