The Blessed Buddha once said:
The destroying and cruel killing of living beings, Bhikkhus & Friends,
committed, carried out, and often pursued, leads to Hell, the animal
world, or the realm of ghosts. Even the least result of killing living
beings brings a short life. Killing brings bad future & quick death!!!
The taking of other people's belongings, committed, carried out,
and often pursued, leads to Hell, the animal world, or the realm of
hungry ghosts. Even the slightest result of stealing other people's
belongings brings the future loss of one's own goods and poverty!!!
Adultery and illegitimate sex, committed, carried out, and often
pursued, leads to Hell, rebirth as animal, or in realm of ugly ghosts.
Even the minimum result of unlawful sex brings enmity & rivalry!!!
Lying, committed, carried out, and often pursued, leads to Hell,
the animal world, or the realm of ghosts. Even the weakest result
of lying brings future false accusations, blame & evil complaints!!!
Tale-bearing, slander, divisive speech of gossip & malicious rumours
committed, carried out, & often done, leads to Hell, animal world,
or the realm of, ghosts. Even the slightest result of tale-bearing
brings discord, disagreement and conflict even with one's friends!!!
Harsh, hurting and aggressive speech, committed, carried out, and
often pursued, leads to rebirth in Hell, rebirth in the animal world,
or the realm of ghosts. Even the smallest result of abusive language
brings back future relentless, rude and ruthless verbal scolding!!!
Vain & empty gossip, prattle, and hearsay committed, carried out,
and often pursued, leads to Hell, the animal world, or the realm of
ghosts. Even the least result of vain and void prattle brings future
hearing of unacceptable and disagreeable stories and words!!!
Drinking intoxicating drinks, such as wine and liquor, committed,
carried out, and often pursued, leads to rebirth in Hell, the animal
world, or the realm of hungry ghosts. Even the minutest result of
drinking alcoholic drinks brings future dementia and insanity!!!
 

Beings are owners of their actions (kamma), inheritor of their own
actions, are created by their actions, and linked to their actions!!!
Their actions produce, condition and create their future destiny...
Whatever action they perform; good as evil, the resulting reaction
and consequential effects will be only theirs! Be careful!

Kamma causes & creates the rebirth! A shadow that never leaves!

Source:
Numerical Discourses of the Buddha. Anguttara Nikaya AN 10:208
http://What-Buddha-Said.net/Canon/Sutta/AN/Index.Numerical.htm
 

For details on the mechanics of Kamma = Intentional Action see:
http://What-Buddha-Said.net/drops/II/Kamma_is_intention.htm
http://What-Buddha-Said.net/drops/II/Buddha_on_Kamma.htm
http://What-Buddha-Said.net/drops/II/Good_Action_dilutes_Evil_Kamma.htm
http://What-Buddha-Said.net/drops/II/Kamma_leading_to_short_&_long_life.htm
http://What-Buddha-Said.net/drops/II/Kamma_leading_to_Health_&_Sickness.htm
http://What-Buddha-Said.net/drops/II/Kamma_leading_to_Low_or_High_Birth.htm
http://What-Buddha-Said.net/drops/II/Kamma_leading_to_Wealth_or_Poverty.htm
http://What-Buddha-Said.net/drops/II/Kamma_leading_to_Beauty_&_Ugliness.htm
http://What-Buddha-Said.net/drops/II/Effect_of_Action_(kamma)_is_Delayed.htm
http://What-Buddha-Said.net/drops/II/Kamma_leading_to_Power_or_Disrespect.htm
http://What-Buddha-Said.net/drops/II/Evil_Kamma_enhances_other_Evil_Kamma.htm
http://What-Buddha-Said.net/drops/II/Good_Action_enhances_other_Good_Kamma.htm
http://What-Buddha-Said.net/drops/II/Kamma_leading_to_Stupidity_or_Intelligence.htm