Jami` at-Tirmidhi 1920
جامع الترمذي#1920Sahihحَدَّثَنَا أَبُو بَكْرٍ، مُحَمَّدُ بْنُ أَبَانَ حَدَّثَنَا مُحَمَّدُ بْنُ فُضَيْلٍ، عَنْ مُحَمَّدِ بْنِ إِسْحَاقَ، عَنْ عَمْرِو بْنِ شُعَيْبٍ، عَنْ أَبِيهِ، عَنْ جَدِّهِ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لَيْسَ مِنَّا مَنْ لَمْ يَرْحَمْ صَغِيرَنَا وَيَعْرِفْ شَرَفَ كَبِيرِنَا " . حَدَّثَنَا هَنَّادٌ، حَدَّثَنَا عَبْدَةُ، عَنْ مُحَمَّدِ بْنِ إِسْحَاقَ، نَحْوَهُ إِلاَّ أَنَّهُ قَالَ " وَيَعْرِفْ حَقَّ كَبِيرِنَا " .
Amr bin Shu'aib narrated that his father, from his grandfather, who said that the Messenger of Allah said:'He is not one of us who does not have mercy upon our young, nor knows the honor of our elders
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: 27:26