Mishkat al-Masabih 28 Events of the Day of Resurrection and the Beginning of Creation كتاب أحوال القيامة وبدء الخلق 171

وَعَنْ أَبِي هُرَيْرَةَ قَالَ: سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ: ” إِنَّ اللَّهَ تَعَالَى كَتَبَ كِتَابًا قَبْلَ أَنْ يَخْلُقَ الْخَلْقَ: إِنَّ رَحْمَتِي سَبَقَتْ غَضَبِي فَهُوَ مَكْتُوب عِنْده فَوق الْعَرْش ” . مُتَّفق عَلَيْهِ

Abu Huraira told that he heard God’s messenger say God most high had inscribed a document before bringing the creation into being, “My mercy has preceded my anger,” and that it is written in His presence above the throne. (Bukhari and Muslim.)