Hadith 8:1284
Abu Bakr narrated to us, he said: Abd al-Rahman ibn Mahdi narrated to us, from Shu'bah, he said: I asked al-Hakam and Hammad about the *takbir* during the ten days [of Dhu al-Hijjah], and they both said: "It is an innovation."
حدثنا أبو بكر قال حدثنا عبد الرحمن بن مهدي عن شعبة قال سألت الحكم وحمادا عن التكبير أيام العشر فقالا محدث