Sunan Ibn Majah 189
It was narrated that Abu Hurairah said:
"The Messenger of Allah said: 'Your Lord wrote for Himself with His Own Hand before He created the creation: "My mercy precedes My wrath."
حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى، حَدَّثَنَا صَفْوَانُ بْنُ عِيسَى، عَنِ ابْنِ عَجْلاَنَ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ ـ ﷺ ـ " كَتَبَ رَبُّكُمْ عَلَى نَفْسِهِ بِيَدِهِ قَبْلَ أَنْ يَخْلُقَ الْخَلْقَ رَحْمَتِي سَبَقَتْ غَضَبِي " .
Classification
Sahih (Authentic) [Darussalam]
References
Sunan Ibn Majah 189
Sunan Ibn Majah Vol. 1, Book of Purification and its Sunnah, Hadith 189