Sunan Abi Dawud 679
سنن أبي داود#679Sahihحَدَّثَنَا يَحْيَى بْنُ مَعِينٍ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، عَنْ عِكْرِمَةَ بْنِ عَمَّارٍ، عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ، عَنْ أَبِي سَلَمَةَ، عَنْ عَائِشَةَ، قَالَتْ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ يَزَالُ قَوْمٌ يَتَأَخَّرُونَ عَنِ الصَّفِّ الأَوَّلِ حَتَّى يُؤَخِّرَهُمُ اللَّهُ فِي النَّارِ " .
‘A’ishah reported the Messenger of Allah (ﷺ) as saying the people will continue to keep themselves away from the front row until Allah will keep them away (from the front) in the Hell-fire
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: 2:289