Prayer (Kitab Al-Salat)
2/187. Chapter:
How Should One Sit In The Tashah-hud
Sunan Abi Dawud
حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا جَرِيرٌ، عَنْ يَحْيَى، بِإِسْنَادِهِ مِثْلَهُ . قَالَ أَبُو دَاوُدَ قَالَ حَمَّادُ بْنُ زَيْدٍ عَنْ يَحْيَى، أَيْضًا مِنَ السُّنَّةِ كَمَا قَالَ جَرِيرٌ .
(There is another chain) from Yahya with his chain and similar (to the previous hadith). Abu Dawud said: Hammad bin Zaid also said (the wording): "From the Sunnah" (narrating) from Yahya just as Jarir did.
Reference : Sunan Abi Dawud 960In-book reference : Book 2, Hadith 571English translation : Book 2, Hadith 957