what doe the Quran says about Sacrifice

قُلْ إِنَّ صَلَاتِي وَنُسُكِي وَمَحْيَايَ وَمَمَاتِي لِلَّهِ رَبِّ الْعَالَمِينَ

Qul inna salatee wanusukeewamahyaya wamamatee lillahi rabbialAAalameen 
Say, "Indeed, my prayer, my rites of sacrifice, my living and my dying are for Allah , Lord of the worlds.

[Qur'an 6:162]