“If the believer knew what was with Allah of punishment,

Abu Huraira reported: The Messenger of Allah صلى الله عليه وسلم said, “If the believer knew what was with Allah of punishment, no one would hope for Paradise; and if the disbeliever knew what was with Allah of Mercy, no one would despair of attaining Paradise.”

[Sunan At-Tirmidhi, Book 45, Number 3542, Grade: Sahih]

Book of Supplications, Chapter: Allah created one hundred mercies

عَنْ أَبِي هُرَيْرَةَ  أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ لَوْ يَعْلَمُ الْمُؤْمِنُ مَا عِنْدَ اللَّهِ مِنْ الْعُقُوبَةِ مَا طَمِعَ فِي الْجَنَّةِ أَحَدٌ وَلَوْ يَعْلَمُ الْكَافِرُ مَا عِنْدَ اللَّهِ مِنْ الرَّحْمَةِ مَا قَنَطَ مِنْ الْجَنَّةِ أَحَدٌ

سنن الترمذي كتاب الدعوات باب خلق الله مائة رحمة