كتاب الرقاق
49  
The Book of Heart-Melting Traditions
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Chapter: "Most Of The People Of Paradise Are Poor, And Most Of The Inhabitants Of The Fire Are Women, And The Fitnah Of Women"
(1)
بَاب أَكْثَرُ أَهْلِ الْجَنَّةِ الْفُقَرَاءُ وَأَكْثَرُ أَهْلِ النَّارِ النِّسَاءُ وَبَيَانِ الْفِتْنَةِ بِالنِّسَاءِ
Sahih Muslim 2737 a

Ibn Abbas reported that Allah's Messenger (ﷺ) said:

I had a chance to look into the Paradise and I found that majority of the people was poor and I looked into the Fire and there I found the majority constituted by women.
حَدَّثَنَا زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ إِبْرَاهِيمَ، عَنْ أَيُّوبَ، عَنْ أَبِي رَجَاءٍ، الْعُطَارِدِيِّ قَالَ سَمِعْتُ ابْنَ عَبَّاسٍ، يَقُولُ قَالَ مُحَمَّدٌ صلى الله عليه وسلم ‏ "‏ اطَّلَعْتُ فِي الْجَنَّةِ فَرَأَيْتُ أَكْثَرَ أَهْلِهَا الْفُقَرَاءَ وَاطَّلَعْتُ فِي النَّارِ فَرَأَيْتُ أَكْثَرَ أَهْلِهَا النِّسَاءَ ‏"‏ ‏.‏
Reference : Sahih Muslim 2737a
In-book reference : Book 49, Hadith 2
USC-MSA web (English) reference : Book 36, Hadith 6597
  (deprecated numbering scheme)