The Prophet ﷺ said, "Whoever believes in Allah and His Messenger, establishes the prayer, and fasts during Ramadan, it is a right upon Allah to admit him into Paradise, whether he migrated in the cause of Allah or remained in the land where he was born."The companions said, "Messenger of Allah, shall we not inform the people of this?"He replied, "In Paradise there are one hundred levels which Allah has prepared for those who strive in His cause. Between every two levels is a distance like that between the heaven and the earth. So when you ask Allah, ask Him for Firdaws, for it is the middle of Paradise and the highest part of Paradise. Above it is the Throne of the Most Merciful, and from it the rivers of Paradise burst forth."
عن النبي ﷺ: من آمن بالله ورسوله، وأقام الصلاة، وصام رمضان، كان حقا على الله أن يدخله الجنة، هاجر في سبيل الله، أو جلس في أرضه التي ولد فيها. قالوا: يا رسول الله! أفلا ننبئ الناس بذلك؟ قال: إن في الجنة مائة درجة أعدها الله للمجاهدين في سبيله، كل درجتين ما بينهما كما بين السماء والأرض، فإذا سألتم الله، فسلوه الفردوس، فإنه أوسط الجنة وأعلى الجنة، وفوقه عرش الرحمن، ومنه تفجر أنهار الجنة.
Bukhari related it in the Book of Tawhid (7423), from Ibrahim bin Munzir, who said, Muhammad bin Fulayh told me, who said, my father told me, Hilal told me, from Ata bin Yasar, from Abu Hurairah, and he mentioned it.