Differing grades
Sunan Abu Dawud 2788
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.
يَا أَيُّهَا النَّاسُ إِنَّ عَلَى كُلِّ أَهْلِ بَيْتٍ فِي كُلِّ عَامٍ أُضْحِيَةً وَعَتِيرَةً أَتَدْرُونَ مَا الْعَتِيرَةُ هَذِهِ الَّتِي يَقُولُ النَّاسُ الرَّجَبِيَّةُ " .