I heard Messenger of Allah ﷺ saying: "Before Allah created the creations, He wrote a Book (wherein He has written): "My Mercy has preceded my Anger.' And that is written with Him over the Throne." (see Hadith 3194)
أَنَّهُ سَمِعَ أَبَا هُرَيْرَةَ ؓ يَقُولُ سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ إِنَّ اللَّهَ كَتَبَ كِتَابًا قَبْلَ أَنْ يَخْلُقَ الْخَلْقَ إِنَّ رَحْمَتِي سَبَقَتْ غَضَبِي فَهْوَ مَكْتُوبٌ عِنْدَهُ فَوْقَ الْعَرْشِ
[Machine] The Messenger of Allah ﷺ said, "When Allah created the creation, He wrote in a book that is with Him, above the Throne: 'Indeed, My mercy has preceded My anger.'"
قَالَ رَسُولُ اللهِ ﷺ لَمَّا خَلَقَ اللهُ الْخَلْقَ كَتَبَ كِتَابًا فَهُوَ عِنْدَهُ فَوْقَ الْعَرْشِ إِنَّ رَحْمَتِي سَبَقَتْ غَضَبِي
Messenger of Allah ﷺ said, "When Allah completed the creation, He wrote in His Book which is with Him on His Throne, "My Mercy overpowers My Anger." (Using translation from Bukhārī 3194)
وَقَالَ رَسُولُ اللهِ ﷺ لَمَّا قَضَى اللهُ الْخَلْقَ كَتَبَ كِتَابًا فَهُوَ عِنْدَهُ فَوْقَ الْعَرْشِ إِنَّ رَحْمَتِي غَلَبَتْ غَضَبِي