Sacrifice

The Koraan says,
Surah Al-Kauther:
1. To thee have We granted the Fount (Of Abundance).
2. Therefore to thy Lord turn in Prayer and Sacrifice.
3. For he who hateth thee He will be cut off (from Future Hope).

And accordingly for the Eid-ul-Adha, whic fell on 08 Dec. 2008 this year, we did just that, sacrificed a 4 footed animal, in this case a cow.