Zayd bin Aslam narrated from his father that Sayyiduna Abu Bakr (may Allah be pleased with him) took charge, and he distributed among the people equally. It was said to Sayyiduna Abu Bakr (may Allah be pleased with him): O Khalifah of the Messenger of Allah (peace and blessings be upon him), what if you gave preference to the Muhajirun and the Ansar? Sayyiduna Abu Bakr (may Allah be pleased with him) said: I know their merit; as for this livelihood, equality in it is better than preference.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب قسم الفيء والغنيمة / 12987