Sunan Ibn Majah 1427
سنن ابن ماجه#1427Sahihحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا إِسْمَاعِيلُ ابْنُ عُلَيَّةَ، عَنْ لَيْثٍ، عَنْ حَجَّاجِ بْنِ عُبَيْدٍ، عَنْ إِبْرَاهِيمَ بْنِ إِسْمَاعِيلَ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ ـ صلى الله عليه وسلم ـ قَالَ " أَيَعْجِزُ أَحَدُكُمْ إِذَا صَلَّى أَنْ يَتَقَدَّمَ أَوْ يَتَأَخَّرَ أَوْ عَنْ يَمِينِهِ أَوْ عَنْ شِمَالِهِ " يَعْنِي السُّبْحَةَ .
It was narrated from Abu Hurairah that the Prophet (ﷺ) said:“Is anyone of you incapable, when he prays, of stepping forwards or backwards, or to his right or left?” meaning in order to offer a voluntary prayer
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: 5:625