(50) بَابُ قُبْلَةِ الصِّبْيَانِ
'A'isha said, "A bedouin came to the Prophet, may Allah bless him andgrant 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 mercyin your hearts after Allah has removed it from them?'"
Reference: Al-Adab Al-Mufrad 90
In-book reference: Book 5, Hadith 7
English translation: Book 5, Hadith 90