Sunan Abi Dawud 1327
سنن أبي داود#1327Sahihحَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ الْوَرْكَانِيُّ، حَدَّثَنَا ابْنُ أَبِي الزِّنَادِ، عَنْ عَمْرِو بْنِ أَبِي عَمْرٍو، مَوْلَى الْمُطَّلِبِ عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ، قَالَ : كَانَتْ قِرَاءَةُ النَّبِيِّ صلى الله عليه وسلم عَلَى قَدْرِ مَا يَسْمَعُهُ مَنْ فِي الْحُجْرَةِ وَهُوَ فِي الْبَيْتِ .
Narrated Abdullah ibn Abbas: The Prophet's (ﷺ) recitation was loud enough for one who was in the inner chamber to hear it when he was in the house
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-AlbaniHasan Sahih
Muhammad Muhyi Al-Din Abdul HamidHasan Sahih
Shuaib Al ArnautHasan
Zubair Ali ZaiIsnaad Hasan
In-book reference: 5:78