عَنْ مِخْنَفِ بْنِ سُلَيْمٍ رَضِيَ اللَّهُ عَنْهُ بِنَحْوِهِ فَقَالَ يَا أَيُّهَا النَّاسُ إِنَّ عَلَى أَهْلِ كُلِّ بَيْتٍ فِي كُلِّ عَامٍ أُضْحِيَّةً وَعَتِيرَةً أَتَدْرُونَ مَا الْعَتِيرَةُ هِيَ الَّتِي يُسَمِّيهَا النَّاسُ الرَّجَبِيَّةَ
A similar hadith is narrated from Sayyiduna Mukhnaf bin Sulaym (may Allah be pleased with him), except that in it is: O people! Indeed, every year, sacrifice (Qurbani) and ‘Atirah are obligatory upon every household. Do you know what ‘Atirah is? It is the same which people call Rajabiyyah.