Sayyiduna al-Harith ibn Malik radiAllahu anhu narrates: ‘I passed by The Beloved Messenger of Allah ﷺ and He ﷺ asked me:
“How are you this morning, O Haritha?” He said, “I woke up truly a believer.”
He ﷺ said, “Be careful of what you say. Every truth has a reality, so what is the reality of your belief ?”
He said, “I have become averse to this world. It is if I am witnessing the inhabitants of Paradise visiting one another, and it is as if I am witnessing the inhabitants of the Fire bewailing one another.”
He ﷺ said, “O Haritha, you have known, so adhere.”
He ﷺ said it three times.
Ref: Musannaf ibn Abi Shaybah