Sunan Abi Dawud 424
سنن أبي داود#424Sahihحَدَّثَنَا إِسْحَاقُ بْنُ إِسْمَاعِيلَ، حَدَّثَنَا سُفْيَانُ، عَنِ ابْنِ عَجْلاَنَ، عَنْ عَاصِمِ بْنِ عُمَرَ بْنِ قَتَادَةَ بْنِ النُّعْمَانِ، عَنْ مَحْمُودِ بْنِ لَبِيدٍ، عَنْ رَافِعِ بْنِ خَدِيجٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " أَصْبِحُوا بِالصُّبْحِ فَإِنَّهُ أَعْظَمُ لأُجُورِكُمْ " . أَوْ " أَعْظَمُ لِلأَجْرِ " .
Rafi' b. Khadij reported the Messenger of Allah (ﷺ) as saying:Offer Fajr prayer at dawn, for it is most productive of rewards to you or most productive of reward
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:
In-book reference: 2:34