Prayer (Kitab Al-Salat)
2/258. Chapter:
The Takbir During The Two 'Eid
Sunan Abi Dawud
حَدَّثَنَا ابْنُ السَّرْحِ، أَخْبَرَنَا ابْنُ وَهْبٍ، أَخْبَرَنِي ابْنُ لَهِيعَةَ، عَنْ خَالِدِ بْنِ يَزِيدَ، عَنِ ابْنِ شِهَابٍ، بِإِسْنَادِهِ وَمَعْنَاهُ قَالَ سِوَى تَكْبِيرَتَىِ الرُّكُوعِ .
The above mentioned tradition has also been narrated by Ibn Shihab through a different chain of transmitters to the same effect. This version adds: "Except the two takers pronounced at the time of the bowing."
Reference : Sunan Abi Dawud 1150In-book reference : Book 2, Hadith 761English translation : Book 2, Hadith 1146