(4) باب الْعَتِيرَةِ
Narrated Abu Huraira:
The Prophet (ﷺ) said, "Neither Fara' nor 'Atira) is permissible)." Al-Fara' was the first offspring (they got of camels or sheep) which they (pagans) used to offer (as a sacrifice) to their idols. 'Atira was (a sheep which used to be slaughtered) during the month of Rajab. (IT)
Reference (IT): Sahih al-Bukhari 5474 (IT)
In-book reference (IT): Book 71, Hadith 10 (IT)
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 7, Book 66, Hadith 383 (IT)