SHAFAQNA -Which sin creates calamity for the human being? It is narrated from Imam Baqir (AS) who said: Verily, Allah (SWT) has allocated locks for bad deeds and the key to those locks is wine (drinking Alcohol) and lying is worse than wine [1]. In another narration, Imam Baqir (AS) said: Avoid laziness and impatience which both of them are the keys to bad deeds. Do not perform Salaat with laziness and impatience, because these bad deeds are signs of hypocrisy [2].
[1] Beharul Anwaar, Vol. 72, Page 236.
[2] Tohaful Oqool, Page 295.