What did Ibn Umar (peace be upon him) say to Ibn Jafar (peace be upon him) when he greeted him?
 Narrated Ash-Shu`bi:                     Whenever Ibn `Umar greeted Ibn Jafar, he used to say: "As-salamu-'Alaika (i.e. Peace be on you) O son of Dhu-l-Janahain (son of the two-winged person).