Sunan Abi Dawud 753
سنن أبي داود#753Sahihحَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا يَحْيَى، عَنِ ابْنِ أَبِي ذِئْبٍ، عَنْ سَعِيدِ بْنِ سَمْعَانَ، عَنْ أَبِي هُرَيْرَةَ، قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم إِذَا دَخَلَ فِي الصَّلاَةِ رَفَعَ يَدَيْهِ مَدًّا .
Narrated AbuHurayrah: When the Messenger of Allah (ﷺ) began his prayer, he raised his hands extensively
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
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiIsnaad Hasan
In-book reference: 2:363