SHAFAQNA – Imam Sadeq (AS) was asked: Is the liar the one who lies about a thing? Imam (AS) replied: No, the liar is the one who is addicted to lying . In another narration, Imam Baqer (AS) narrated from his father Imam Sajjad (AS) who used to tell his children: Avoid any small or big lies, jokingly and seriously because if a human being tells a small lie, will be encouraged to tell big lies, and then will lie continuously until God registers his/her name as the liar . It is also narrated from Imam Ali (AS) who said: No servant of God will taste belief until he/she abandons lies, jokingly and seriously .
 Beharul Anwaar, Vol. 69, Page 250.
 As above, page 235.
 As above, page 249.