(1)
Abu Hurairah (RAA) narrated that the Messenger of Allah said:
"Remember, as much as you can, the one thing (fact or reality) which (always) brings an end to all worldly joys and pleasures, (meaning death)"Related by At-Tirmidhi, An-Nasa'i and Ibn Hibban. (IT)
Reference (IT): Bulugh al-Maram 532 (IT)
In-book reference (IT): Book 3, Hadith 1 (IT)
English translation (IT): Book 3, Hadith 557 (IT)