Sunan Abi Dawud 1295
سنن أبي داود#1295Sahihحَدَّثَنَا عَمْرُو بْنُ مَرْزُوقٍ، أَخْبَرَنَا شُعْبَةُ، عَنْ يَعْلَى بْنِ عَطَاءٍ، عَنْ عَلِيِّ بْنِ عَبْدِ اللَّهِ الْبَارِقِيِّ، عَنِ ابْنِ عُمَرَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " صَلاَةُ اللَّيْلِ وَالنَّهَارِ مَثْنَى مَثْنَى " .
Narrated Abdullah ibn Umar: The Prophet (ﷺ) said: Prayer by night and day should consist of pairs of rak'ahs
Scholarly Authentication
The label above is the grade most of these scholars gave, each scholar counted once — 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. When they judged only its chain of narrators (“Isnaad”), the label says “Sound chain”. Each scholar's own wording:
Our source also lists this ruling under Muhammad Muhyi Al-Din Abdul Hamid, the editor of the printed edition it was taken from. It is al-Albani's ruling printed again, so it is counted once.
In-book reference: 5:46