The Messenger of Allah (may Allah's peace and blessings be upon him) said to Mu‘āwiyah: O Allah, make him a guide who is rightly guided, and guide others through him. [At-Tirmidhi]

قال النبي -صلى الله عليه وسلم- لمعاوية: «اللهم اجعله هاديًا مَهْديًّا واهدِ به». [صحيح.] - [رواه الترمذي وأحمد.]