Sahih Muslim
The Book of Purification (Kitab Al-Taharah)
Book Number: 002 / Hadith Number: 433
Mus'ab b. Sa'd reported: 'Abdullah son of Umar came to Ibn'Amir in order to inquire after his health as he was ailing. He said Ibn 'Umar, why don't you prayto Allah for me? He said: I heard of Allah's Messenger (may peace be upon him) say: Neither the prayer is accepted without parification nor is charity accepted out of the ill-gotten (wealth), and thou wert the (governor) of Basra.