عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيّ صَلَّى اللّٰهُ عَلَيْهِ وَسَلَّم قَالَ
إِنَّ اللهَ لَمَّا قَضَى الْخَلْقَ كَتَبَ عِنْدَهُ فَوْقَ عَرْشِهِ إِنَّ رَحْمَتِي سَبَقَتْ غَضَبِي
Hazrat Abu Hurairahra narrated, “The Prophetsa said, ‘When Allah had finished His creation, He wrote with Him over His Throne: ‘My mercy precedes My anger.’”
(Sahih al-Bukhari, Kitab at-tawhid, Bab ‘wa kana ‘arshuhu ‘ala l-ma’i, wa huwa rabbu l-‘arshi l-azim’)