COMPASSION H H 906 "The Prophet, praise and peace be upon him, kissed his grandson Hasan, the son of Ali. Aqr'a, the son of Habis was with them at this time and said, 'I have ten sons and never kissed any of them.' The Prophet, praise and peace be upon him, looked at him and said, 'He who has no compassion will receive none.'" R 906 Bukhari and Muslim with a chain up to Abu Hurairah who related this.
893- وعن أَبي هريرة رضي الله عنه ، قَالَ : قَبَّلَ النبيُّ صلى الله عليه وآله وسلم الحَسَنَ بنَ عَلِيٍّ رضي الله عنهما ، فَقَالَ الأقْرَعُ بن حَابِسٍ : إنَّ لِي عَشْرَةً مِنَ الْوَلَدِ مَا قَبَّلْتُ مِنْهُمْ أحَدَاً . فَقَالَ رسول الله صلى الله عليه وآله وسلم : "مَنْ لاَ يَرْحَمْ لاَ يُرْحَمْ !" متفقٌ عَلَيْهِ .