We were staying with the Messenger of Allah ﷺ at Arafat; he said: O people, every family must offer a sacrifice and an atirah. Do you know what the atirah is? It is what you call the Rajab sacrifice. Abu Dawud said: 'Atirah has been abrogated, and this tradition is an abrogated one.  

وَنَحْنُ وُقُوفٌ مَعَ رَسُولِ اللَّهِ ﷺ بِعَرَفَاتٍ قَالَ يَا أَيُّهَا النَّاسُ إِنَّ عَلَى كُلِّ أَهْلِ بَيْتٍ فِي كُلِّ عَامٍ أُضْحِيَةً وَعَتِيرَةً أَتَدْرُونَ مَا الْعَتِيرَةُ هَذِهِ الَّتِي يَقُولُ النَّاسُ الرَّجَبِيَّةُ  

The Prophet ﷺ said: I have been commanded to celebrate festival ('Id) on the day of sacrifice, which Allah, Most High, has appointed for this community. A man said: If I do not find except a she-goat or a she-camel borrowed for milk or other benefits, should I sacrifice it? He said: No, but you should clip your hair , and nails, trim your moustaches, and shave your pubes. This is all your sacrifice in the eyes of Allah, Most High.  

أَنَّ النَّبِيَّ ﷺ قَالَ أُمِرْتُ بِيَوْمِ الأَضْحَى عِيدًا جَعَلَهُ اللَّهُ ﷻ لِهَذِهِ الأُمَّةِ قَالَ الرَّجُلُ أَرَأَيْتَ إِنْ لَمْ أَجِدْ إِلاَّ أُضْحِيَةً أُنْثَى أَفَأُضَحِّي بِهَا قَالَ لاَ وَلَكِنْ تَأْخُذُ مِنْ شَعْرِكَ وَأَظْفَارِكَ وَتَقُصُّ شَارِبَكَ وَتَحْلِقُ عَانَتَكَ فَتِلْكَ تَمَامُ أُضْحِيَتِكَ عِنْدَ اللَّهِ ﷻ