(Al-Hajj) 22 : 36
وَالْبُدْنَ جَعَلْنَاهَا لَكُمْ مِنْ شَعَائِرِ اللَّهِ لَكُمْ فِيهَا خَيْرٌ ۖ فَاذْكُرُوا اسْمَ اللَّهِ عَلَيْهَا صَوَافَّ ۖ فَإِذَا وَجَبَتْ جُنُوبُهَا فَكُلُوا مِنْهَا وَأَطْعِمُوا الْقَانِعَ وَالْمُعْتَرَّ ۚ كَذَٰلِكَ سَخَّرْنَاهَا لَكُمْ لَعَلَّكُمْ تَشْكُرُونَ
And the sacrificial camels We have made them as the symbols of Lord Allah. There are benefits for you in them. Then remember the name of Allah upon them when lined up for sacrifice; and when they are fallen on their sides, then you eat from them and feed the needy and the beggar. Just like that We have subjected them to you, so that you may be grateful.
See explanation 15: 28.