Book of Ar-Riqaaq - Hadeeth No.6469

Narrated Abu Hurairah (RA): I heard Allah's Messenger (ﷺ) saying, "Verily Allah created Mercy. The day He created it, He made it into one hundred parts. He withheld with Him ninety-nine parts, and sent it's one part to all His creatures. Had the non-believer known of all the Mercy which is in the Hands of Allah, he would not lose hope of entering Paradise, and had the believer known of all the punishment which is present with Allah, he would not consider himself safe from the Hell-Fire."
عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ قَالَ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ " إِنَّ اللَّهَ خَلَقَ الرَّحْمَةَ يَوْمَ خَلَقَهَا مِائَةَ رَحْمَةٍ، فَأَمْسَكَ عِنْدَهُ تِسْعًا وَتِسْعِينَ رَحْمَةً، وَأَرْسَلَ فِي خَلْقِهِ كُلِّهِمْ رَحْمَةً وَاحِدَةً، فَلَوْ يَعْلَمُ الْكَافِرُ بِكُلِّ الَّذِي عِنْدَ اللَّهِ مِنَ الرَّحْمَةِ لَمْ يَيْأَسْ مِنَ الْجَنَّةِ، وَلَوْ يَعْلَمُ الْمُؤْمِنُ بِكُلِّ الَّذِي عِنْدَ اللَّهِ مِنَ الْعَذَابِ لَمْ يَأْمَنْ مِنَ النَّارِ ".
[Saheeh Al-Bukhari, Book of Ar-Riqaaq (To make the Heart Tender), Hadeeth No.6469]