ßÊÇÈ ÇáÃÍßÇã : Hadeeth No:6696 : Anas: Qais bin Sa'd was to the Prophet like a chief police officer to an Amir (chief)....

ßÊÇÈ ÝÖÇÆá ÇáÕÍÇÈÉ : Hadeeth No:3487 : Hudhaifa: The Prophet said to the people of Nijran, "I will send you the most trustworthy man." (Every one of) the companions of the Prophet was looking forward (to be that person). He then sent Abu 'Ubaida....