Mishkat al-Masabih #1399

Mikhnaf b. Sulaim said: We were standing with God’s Messenger at ‘Arafa, and I heard him say, “O people, every family must offer annually a sacrifice and an ‘atira. Do you know what the ‘atira is? It is what you call the Rajab sacrifice.” Tirmidhi, Abu Dawud, Nasa'i and Ibn Majah transmitted it. Tirmidhi said this is a gharib tradition with a weak isnad, and Abu Dawud said the ‘atira has been abrogated.