Mughith bin Sumayy (may Allah have mercy on him) says: Al-Zubayr bin al-Awwam (may Allah be pleased with him) had a thousand slaves who used to pay him from their earnings, but he never brought any of their earnings into his house.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النفقات / 15787