Sunan Ibn Majah, Book 37, Hadith 4399 (In-Book) ⓘ
It was narrated that Abu Hurairah said: “The Messenger of Allah said: ‘Frequently remember the destroyer of pleasures,’ meaning death.”
حَدَّثَنَا مَحْمُودُ بْنُ غَيْلاَنَ، حَدَّثَنَا الْفَضْلُ بْنُ مُوسَى، عَنْ مُحَمَّدِ بْنِ عَمْرٍو، عَنْ أَبِي سَلَمَةَ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ : " أَكْثِرُوا ذِكْرَ هَاذِمِ اللَّذَّاتِ " . يَعْنِي الْمَوْتَ .
also referenced under: Hadith 4258 (Reference) & Volume 5, Book 37, Hadith 4258 (DarusSalam)