Sahih al-Bukhari 5060
Book 66: Virtues of the Qur'an · Narrated by `Abdullah
Arabic
حَدَّثَنَا أَبُو النُّعْمَانِ، حَدَّثَنَا حَمَّادٌ، عَنْ أَبِي عِمْرَانَ الْجَوْنِيِّ، عَنْ جُنْدَبِ بْنِ عَبْدِ اللَّهِ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " اقْرَءُوا الْقُرْآنَ مَا ائْتَلَفَتْ قُلُوبُكُمْ، فَإِذَا اخْتَلَفْتُمْ فَقُومُوا عَنْهُ ".
English translation
Narrated `Abdullah:The Prophet (ﷺ) said, "Recite (and study) the Qur'an as long as you agree about its interpretation, but if you have any difference of opinion (as regards to its interpretation and meaning) then you should stop reciting it (for the time being)
Reference: Sahih al-Bukhari 5060, Book of Virtues of the Qur'an. English translation by Dr. Muhammad Muhsin Khan.