What to say when slaughtering or sacrificing an animal

((بِسْمِ اللَّهِ وَاللَّهُ أَكْبَرُ [اللَّهُمَّ مِنْكَ وَلَكَ] اللَّهُمَّ تَقَبَّلْ مِنِّي)).

Bismil-lah wallahu akbar, allahumma minka walak, allahumma taqabbal minnee.

In the name of Allah, and Allah is the greatest. O Allah, (it is) from You and belongs to You, O Allah, accept this from me.

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