Mukhtasar Muslim (Abridged) 1579 — The Prophet was most compassionate

Narrated from Abu Huraira (may Allah be pleased with him) that Aqra’ bin Habis saw the Messenger of Allah (peace and blessings of Allah be upon him) kissing Hasan (may Allah be pleased with him). He said, "O Messenger of Allah! I have ten children and I have not kissed any of them." The Prophet (peace and blessings of Allah be upon him) said, "Whoever does not show mercy (to children, orphans, the helpless, and the weak), Allah will not show mercy to him."