It is narrated from Sayyiduna Abu Qatadah (may Allah be pleased with him) that when the Prophet (peace and blessings be upon him) came to Madinah, he (peace and blessings be upon him) asked about al-Bara' bin Ma'rur (may Allah be pleased with him). They said: "He has died and has bequeathed his third to you." He (peace and blessings be upon him) said: "I return this third of mine to his children."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الوصايا / 12613