It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Paradise has one hundred levels, and between each two levels is a distance of one hundred years.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 7923
Hadith Gradingحکم دارالسلام:حديث حسن، وهذا إسناد ضعيف، شريك سيئ الحفظ.