Sahih Muslim
The Book on Government (Kitab Al-Imara)
Book Number: 020 / Hadith Number: 4498
This hadith has been transmitted on the authority of Ibn 'Umar, but there is (a slight change of wording) in the hadith transmitted through Zuhri that he said:" I think that he (the narrator) said: The man is a custodian of the wealth of his father, and he would be answerable for what is in his custody."