It is narrated from Sayyiduna Uqbah bin Amir (may Allah be pleased with him) that a boy said to the Prophet (peace and blessings be upon him): My mother has left some jewellery; shall I give it in charity on her behalf? He (peace and blessings be upon him) said: "Did she instruct you to do that?" He said: No. He (peace and blessings be upon him) said: "Then keep it for yourself."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14844