Sunan an-Nasa'i, Hadith 4224 ⓘ
Mikhnaf bin Sulaim said: "While we were standing with the Messenger of Allah at 'Arafat, he said: 'O people, it is upon each family to offer a sacrifice (Udhiyah) and an 'Atirah each year." (One of the narrators) Muadh said: "Ibn 'Awn used to offer slaughter the 'Atirah, and I saw that with my own eyes during Rajab." (Daif)
أَخْبَرَنَا عَمْرُو بْنُ زُرَارَةَ، قَالَ حَدَّثَنَا مُعَاذٌ، - وَهُوَ ابْنُ مُعَاذٍ - قَالَ حَدَّثَنَا ابْنُ عَوْنٍ، قَالَ حَدَّثَنَا أَبُو رَمْلَةَ، قَالَ أَنْبَأَنَا مِخْنَفُ بْنُ سُلَيْمٍ، قَالَ بَيْنَا نَحْنُ وُقُوفٌ مَعَ النَّبِيِّ صلى الله عليه وسلم بِعَرَفَةَ فَقَالَ " يَا أَيُّهَا النَّاسُ إِنَّ عَلَى أَهْلِ بَيْتٍ فِي كُلِّ عَامٍ أَضْحَاةً وَعَتِيرَةً " . قَالَ مُعَاذٌ كَانَ ابْنُ عَوْنٍ يَعْتِرُ أَبْصَرَتْهُ عَيْنِي فِي رَجَبٍ .
also referenced under: Book 41, Hadith 3 (In-Book) & Volume 5, Book 41, Hadith 4229 (DarusSalam)