'A'isha said, "A bedouin came to the Prophet, may Allah bless him and grant him peace, and asked, "Do you kiss your children? We do not kiss them.' The Prophet, may Allah bless him and grant him peace, said, 'Can I put mercy in your hearts after Allah has removed it from them?'"  

جَاءَ أَعْرَابِيٌّ إِلَى النَّبِيِّ ﷺ فَقَالَ أَتُقَبِّلُونَ صِبْيَانَكُمْ؟ فَمَا نُقَبِّلُهُمْ فَقَالَ النَّبِيُّ ﷺ أَوَ أَمْلِكُ لَكَ أَنْ نَزَعَ اللَّهُ مِنْ قَلْبِكَ الرَّحْمَةَ؟  

Abu Hurayra said, "The Messenger of Allah, may Allah bless him and grant him peace, kissed Hasan ibn 'Ali while al-Aqra' ibn Habis at-Tamimi was sitting with him. Al-Aqra' observed, 'I have ten children and I have never kissed any of them.' The Messenger of Allah, may Allah bless him and grant him peace, looked at him and said, 'Whoever does not show mercy will not be shown mercy.'"  

قَبَّلَ رَسُولُ اللهِ ﷺ حَسَنَ بْنَ عَلِيٍّ وَعِنْدَهُ الأَقْرَعُ بْنُ حَابِسٍ التَّمِيمِيُّ جَالِسٌ فَقَالَ الأَقْرَعُ إِنَّ لِي عَشَرَةً مِنَ الْوَلَدِ مَا قَبَّلْتُ مِنْهُمْ أَحَدًا فَنَظَرَ إِلَيْهِ رَسُولُ اللهِ ﷺ ثُمَّ قَالَ مَنْ لا يَرْحَمُ لا يُرْحَمُ