Sayyiduna Jundub ibne-Abdullah Al-Azdi (RadhiAllaho anho) a sahabi of Nabi Sallallahu alaihi wasallam narrates
that Rasulullah (Sallallahu Alaihi Wasallam) said: The example of the person who teaches people good and neglects himself (does not practice himself), is like a lamp which is a source of illumination for people and burns itself.
{ Tabarani, Targhib }

Narrated ‘Ali (Radi’Allahu anhu) : The Prophet (sall’Allahu alaihi wa sallam) said, “Do not tell a lie against me for whoever tells a lie against me (intentionally)  then he will surely enter the Hell-fire.”
{ Sahih Bukhari } (Book # 3, Hadith # 106)

Narrated salama bin Al-Akwa (radi’Allahu anhu) : I heard the Prophet (sall’Allahu alaihi wa sallam) saying, “Whoever (intentionally) ascribes to me what I have not said then (surely) let him occupy his seat in Hell-fire.”
{ Sahih Bukhari } (Book # 3, Hadith # 109)

Narrated Abu Huraira (Radi’Allahu anhu) : The Prophet (Sall’Allahu alaihi wa sallam) said, “…Whoever tells a lie against me (intentionally), then (surely) let him occupy his seat in hell-fire.”
{ Sahih Bukhari } (Book # 3, Hadith # 110)

Narrated Abu Huraira (Radi’Allahu anhu) : The Prophet (Sall’Allahu alaihi wa sallam) said, “Name yourselves after me (by my name), but do not call yourselves by my kuniya, and whoever sees me in a dream, he surely sees me, for Satan cannot impersonate me (appear in my figure). And whoever intentionally ascribes something to me falsely, he will surely take his place in the (hell) Fire.
{ Sahih Bukhari } (Book # 73, Hadith # 217)

The True meaning of Life is to Plant Trees under whose shade you do not Expect to Sit.