Will you not appoint me governor as you have appointed so and so? He (the Messenger of Allah) said: You will surely come across preferential treatment after me, so you should be patient until you meet me at the Cistern (Haud-i-Kauthar). (Using translation from Muslim 1845a)
أَنَّ رَجُلًا مِنَ الْأَنْصَارِ جَاءَ رَسُولَ اللهِ ﷺ فَقَالَ «أَلَا تَسْتَعْمِلُنِي كَمَا اسْتَعْمَلْتَ فُلَانًا؟» قَالَ «إِنَّكُمْ سَتَلْقَوْنَ بَعْدِي أَثَرَةً فَاصْبِرُوا حَتَّى تَلْقَوْنِي عَلَى الْحَوْضِ»