حَدَّثَنَا الْحَسَنُ بْنُ عَلِيٍّ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، عَنْ سَعِيدٍ، قَالَ الْفَرَعُ أَوَّلُ النِّتَاجِ كَانَ يُنْتَجُ لَهُمْ فَيَذْبَحُونَهُ ‏.‏

Narrated Sa'id: Fara' was the first animal born to them (the Arabs) which they sacrificed. Translation Not Available

Book Ref: Sunan Abi Dawud Book 16 Hadith 2832
Web Ref:  Sunan Abi Dawud Book 15 Hadith 2826