What did Allah's Apostle (saw) do when he wanted to show love to Usama bin Zaid and Al-Hasan bin `Ali?
 Narrated Usama bin Zaid:                     Allah's Apostle used to put me on (one of) his thighs and put Al-Hasan bin `Ali on his other thigh, and then embrace us and say, "O Allah! Please be Merciful to them, as I am merciful to them. "