Usaid bin Hudair said: "A man from Ansar said, 'O Messenger of Allah! You appointed so-and-so and did not appoint me. So, the Prophet(s.a.w) said, 'After me you will see preferential treatment, so be patient till you meet me at Al-Hawd"
SahihSahihHasan SahihBook 33 · Hadith 32