My Question is basically on a hadith of " Sunan Abi Dawood " ( سنن ابی داؤد ) Hadith No. 824
Translation of Hadith : (Abi Dawood 824)::
"Nafib. Mahmudb. Al-Rabi Al-Ansari said: “Ubadah bin al-Samit came to late to lead the morning prayer. Abu Nuaim, the Muadhdhin, pronounced the takbir and he led the people in prayer. Then Ubadah came and I was with him. We Joined the row behind Abu Nuaim, while Abu Nuaim was reciting the Quran loudly. Then Ubadah began to recite the Umm al-Quran (I. e Surah al Fatihah). When he finished, I said to Ubadah: I heard you reciting the Umm al-Quran while Abu Nuaim was reciting Quran loudly. He replied: yes> The Messenger of Allah ﷺ led us in a certain prayer in which the Quran is recited loudly, but he became confused in the recitation. When he finished he turned his face to us and said: Do you recite when I recite the Quran loudly? Some of us said: we do so; this is why I said to myself: What is that which confused me (in the recitation of ) the Quran. Do not recite anything from the Quran when I recite it loudly except the Umm al-Quran."
Is The Narrator of this Hadith is Mudallis?? As a Mufti said to me that this Hadith is not sahih as the narrator of this hadith is Mudallis and he gives the reference from the book "Tabqaat al Mudaliseen" written Imam ibn Hajar al-Asqalani . He (Mufti) Said Imam ibn Hajar al-Asqalani mention that Nafay bin Mehmood Al-Rabi Al-Ansari is Mudallis..
I tried to find the book "Tabqaat al Mudaliseen" But I am fail to find that book... I am confused about this Hadith as many "Muhadiseen" Said this hadith Sahih...