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ahmad:7923 – Yazīd > Sharīk b. ʿAbdullāh > Muḥammad b. Juḥādah > ʿAṭāʾ > Abū Hurayrah

"In Paradise, there are a hundred levels, between every two levels is (the distance of) a hundred years." (Using translation from Tirmidhī 2529)   

أحمد:٧٩٢٣ – حَدَّثَنَا يَزِيدُ أَخْبَرَنَا شَرِيكُ بْنُ عَبْدِ اللهِ عَنْ مُحَمَّدِ بْنِ جُحَادَةَ عَنْ عَطَاءٍ عَنْ أَبِي هُرَيْرَةَ

عَنِ النَّبِيِّ ﷺ قَالَ الْجَنَّةُ مِائَةُ دَرَجَةٍ مَا بَيْنَ كُلِّ دَرَجَتَيْنِ مِائَةُ عَامٍ  

See similar narrations below:

Collected by Tirmidhī, Suyūṭī
tirmidhi:2529 – ʿAbbās al-ʿAnbarī > Yazīd b. Hārūn > Sharīk > Muḥammad b. Juḥādah > ʿAṭāʾ > Abū Hurayrah

"In Paradise, there are a hundred levels, between every two levels is (the distance of) a hundred years."  

Abū ʿĪsá said that this Ḥadīth is Ḥasan-Ṣaḥīḥ.
الترمذي:٢٥٢٩ – حَدَّثَنَا عَبَّاسٌ الْعَنْبَرِيُّ حَدَّثَنَا يَزِيدُ بْنُ هَارُونَ أَخْبَرَنَا شَرِيكٌ عَنْ مُحَمَّدِ بْنِ جُحَادَةَ عَنْ عَطَاءٍ عَنْ أَبِي هُرَيْرَةَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ فِي الْجَنَّةِ مِائَةُ دَرَجَةٍ مَا بَيْنَ كُلِّ دَرَجَتَيْنِ مِائَةُ عَامٍ  

قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ