Ibn Adi narrated: The son of the Muhaddith Abu Dawud said that the great scholar (of Basra) Ayyub assahdiyani, the great scholar (of Koofa) Sufyan ath-Thouri, the great scholar (of Hijaaz) Imam Maalik Ibn Anas, the scholar (from Egypt) Allais ibn’u sa’t, the great Scholar of Khurasaan Abdullah Ibn Mubarak – ALL said that Imam Abu Hanifa was ‘weak’ in Hadeeth.
I heard Ibn Abi Dawud say: "A multitude of 'ulama criticised Abu Hanifah. Thus, the Imam of Basra was Ayyub al-Sakhtiyani and he criticised him; the Imam of Kufa was al-Thawri and he criticised him; the Imam of Hijaz was Malik and he criticised him; and the Imam of Egypt was al-Layth and he criticised him; and the Imam of Shaam was al-Awza'i and he criticised him; and the Imam of the Khurasan was 'Abd Allah ibn al-Mubarak and he criticised him. Hence, the criticism of him is ijma of the 'ulama in all regions."
Imam Bhukari’s Sheik Abdullah bin Zubair Al-Humaidi said Abu Hanifa was weak in Hadeeth
Imam Al-Bukhari narrated in his “Tarikh Sagheer” p 174 from Nuyam ibn Hammad: “Ibrahim ibn Muhammad Al-Fazari narrated to us: We were with Sufyan Ath-Thawri when we received the news of the death of Abu Hanifah, and he said: “Al-Hamdulillah, The One who relieved the Muslims from him, he was destroying the chains of Islam, one by one. None was born in Islam more ill-omened than him”