One day, a friend, Aqra’ bin Habis return with the Messenger. When reached at home, he came by his grandson, Hasan and Husain, thus kissed them. Aqra’ became amazed and said:

Dear Rasulullah , I have 10 children but I never do this way (kissed them).

Rasulullah saw said: من لا يرحم لا يرحم which means: Anyone who does not love, he will not be loved