(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. (JA)
Reference (JA): Bulugh al-Maram 532 (JA)
In-book reference (JA): Book 3, Hadith 1 (JA)
English translation (JA): Book 3, Hadith 557 (JA)