Arabic text
عَنْ أَبِي هُرَيْرَةَ رضي الله عنه قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «أَكْثِرُوا ذِكْرَ هَادمِ اللَّذَّاتِ» يَعْنِي الْمَوْتَ.
Translation
Abu Hurayrah (may Allah be pleased with him) reported: The Messenger of Allah (may Allah's peace and blessings be upon him) said: "Remember the destroyer of pleasures frequently," meaning death.
Explanation
The Prophet (may Allah's peace and blessings be upon him) encouraged frequent remembrance of death, as it reminds man of the Hereafter and demolishes his love for worldly pleasures in his heart, especially those that are forbidden.
Source: HadeethEnc.com