‏الأقضية : Hadeeth No:4283 Zaid b. Khalid al-Juhani reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as sayin.: He who found a stray article is himself led astray if he does not advertise it....

‏فضائل الصحابة‏ : Hadeeth No:6014 This hadith has been narrated on the authority of Anas b. Malik through another chain of transmitters....