Al-Mu'jam al-Awsat 8608 — I heard a man say that Allah Almighty did

A man came to Abu Bakr bin Ayyash (may Allah have mercy on him) and said: "I heard a man say that Allah Almighty did not truly speak to Musa (peace be upon him)." He said: "No one would say this except a disbeliever. I recited the Qur'an to al-A'mash (may Allah have mercy on him), al-A'mash recited to Yahya bin Waththab (may Allah have mercy on him), Yahya bin Waththab recited to Abu Abd al-Rahman (may Allah have mercy on him), Abu Abd al-Rahman recited to Sayyiduna Ali bin Abi Talib (may Allah be pleased with him), and Sayyiduna Ali (may Allah be pleased with him) recited to the Messenger of Allah (peace and blessings be upon him): 'And Allah spoke to Musa with (direct) speech.'"
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from al-A'mash except Abu Bakr bin Ayyash, and Abd al-Jabbar bin Abdullah is alone in narrating it."