Sahih Bukhari
Holding Fast to the Quran and Sunnah
Volume: 009 / Book Number: 092 / Hadith Number: 467
Narrated Jundab bin 'Abdullah:
Allah's Apostle said, "Recite (and study) the Qur'an as long as your hearts are in agreement as to its meanings, but if you have differences as regards its meaning, stop reading it then."