Sunan Abi Dawud 1476
سنن أبي داود#1476Sahihحَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى بْنِ فَارِسٍ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا مَعْمَرٌ، قَالَ قَالَ الزُّهْرِيُّ إِنَّمَا هَذِهِ الأَحْرُفُ فِي الأَمْرِ الْوَاحِدِ لَيْسَ تَخْتَلِفُ فِي حَلاَلٍ وَلاَ حَرَامٍ .
Al-Zuhri said:These modes of reading aimed at the same point, not different in respect of lawful and unlawful
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Al-AlbaniSahih Maqtu
Muhammad Muhyi Al-Din Abdul HamidSahih Maqtu
Shuaib Al ArnautSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 8:61