Jami` at-Tirmidhi 2704
جامع الترمذي#2704Sahihحَدَّثَنَا سُوَيْدُ بْنُ نَصْرٍ، أَنْبَأَنَا عَبْدُ اللَّهِ بْنُ الْمُبَارَكِ، أَنْبَأَنَا مَعْمَرٌ، عَنْ هَمَّامِ بْنِ مُنَبِّهٍ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " يُسَلِّمُ الصَّغِيرُ عَلَى الْكَبِيرِ وَالْمَارُّ عَلَى الْقَاعِدِ وَالْقَلِيلُ عَلَى الْكَثِيرِ " . قَالَ وَهَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ .
Narrated Hammam bin Munabbih:from Abu Hurairah that the Prophet (ﷺ) said: "The young one gives the Salam to the elder, the one passing the by to the one sitting and the few to the many
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: 42:17