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."
عَنِ النَّبِيِّ ﷺ قَالَ يُسَلِّمُ الصَّغِيرُ عَلَى الْكَبِيرِ وَالْمَارُّ عَلَى الْقَاعِدِ وَالْقَلِيلُ عَلَى الْكَثِيرِ قَالَ وَهَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ