(4) باب فِي سَعَةِ رَحْمَةِ اللَّهِ تَعَالَى وَأَنَّهَا سَبَقَتْ غَضَبَهُ
Abu Huraira reported Allah's Messenger (ﷺ) as saying:
Allah created one hundred (parts of mercy) and He distributed one amongst His creation and kept this one hundred excepting one with Himself (for the Day of Resurrection).
Reference: Sahih Muslim 2752 b
In-book reference: Book 50, Hadith 21
USC-MSA web (English) reference(deprecated numbering scheme): Book 37, Hadith 6630