Al-Adab Al-Mufrad, Hadith 363 ⓘ
'Amr ibn Shu'ayb reported from his grandfather that the Messenger of Allah, may Allah bless him and grant him peace, said, "Anyone who does not show mercy to our children nor acknowledge the right of our old people is not one of us."
حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ عَبْدِ اللهِ، حَدَّثَنِي ابْنُ أَبِي الزِّنَادِ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ الْحَارِثِ، عَنْ عَمْرِو بْنِ شُعَيْبٍ، عَنْ أَبِيهِ، عَنْ جَدِّهِ، أَنَّ رَسُولَ اللهِ صلى الله عليه وسلم قَالَ: لَيْسَ مِنَّا مَنْ لَمْ يَرْحَمْ صَغِيرَنَا، وَيَعْرِفْ حَقَّ كَبِيرِنَا.
also referenced under: Book 19, Hadith 2 (In-Book) & Book 19, Hadith 363 (English)