Sayyiduna Anas (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) called the Ansar in order to write (a grant) for them in Bahrain. They said: "No, by Allah! Not until you write the like of it for our brothers from Quraysh." He (peace and blessings be upon him) said: "That will be for them, as much as Allah wills." Each time they said the same thing to him. He (peace and blessings be upon him) said: "After me you will see others preferred over you, so be patient until you meet me."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب آداب القاضي / 20432