Sayyiduna Abu Hurairah (may Allah be pleased with him) narrated from the Messenger of Allah (peace and blessings be upon him) regarding the man who finds his wealth with a destitute person in exactly the same condition; he is more entitled to it than anyone else. And 'Umra is permissible. And when a slave is jointly owned by two men, and one of them frees his share for his partner (co-owner).
Hadith Referenceمسند اسحاق بن راهويه / كتاب العتق و المكاتب / 478
Hadith Takhrij«مسلم ، كتاب المساقاة ، باب من ادرك ما باعه الخ ، رقم : 1559 . مسند احمد ، رقم : 9309 . صحيح ابن حبان ، رقم : 5036 . سنن ترمذي ، رقم : 1262 .»