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).

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ خَلَقَ اللَّهُ مِائَةَ رَحْمَةٍ فَوَضَعَ وَاحِدَةً بَيْنَ خَلْقِهِ وَخَبَأَ عِنْدَهُ مِائَةً إِلاَّ وَاحِدَةً