Sunan Abi Dawud 2639
سنن أبي داود#2639Sahihحَدَّثَنَا الْحَسَنُ بْنُ شَوْكَرٍ، حَدَّثَنَا إِسْمَاعِيلُ ابْنُ عُلَيَّةَ، حَدَّثَنَا الْحَجَّاجُ بْنُ أَبِي عُثْمَانَ، عَنْ أَبِي الزُّبَيْرِ، أَنَّ جَابِرَ بْنَ عَبْدِ اللَّهِ، حَدَّثَهُمْ قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَتَخَلَّفُ فِي الْمَسِيرِ فَيُزْجِي الضَّعِيفَ وَيُرْدِفُ وَيَدْعُو لَهُمْ .
Narrated Jabir ibn Abdullah: The Messenger of Allah (ﷺ) used to keep to the rear when travelling and urge on the weak. He would take someone up behind him and make supplication for them all
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: 15:163