Abu Dawud
Prayer
Book Number: 002 / Hadith Number: 1464
Narated By Sa'd ibn Abu Waqqas : The Apostle of Allah (pbuh) said: He who does not chant the Qur'an is not one of us.
(Sub-narrator Qutaybah said: This Hadith according to my collection is on the authority of Sa'id ibn Abu Sa'id.)