Abu Sa'eed narrated that the Prophet (ﷺ) said:
"Indeed there are a hundred levels in Paradise, if all of the People of Paradise were to be gathered in one of them, it would have sufficed them." (RU)
English reference (RU): Vol. 4, Book 12, Hadith 2532 (RU)
Arabic reference (RU): Book 38, Hadith 2725 (RU)