From Sahih Bukhari (Hadith 3192):
Narrated 'Umar:One day the Prophet (ﷺ) stood up amongst us for a long period and informed us about the beginning of creation (and talked about everything in detail) till he mentioned how the people of Paradise will enter their places and the people of Hell will enter their places. Some remembered what he had said, and some forgot it
Reference: Bukhari 3192