Silsilat al-Ahadith al-Sahihah

Sayyiduna Jundub bin Abdullah Bajali (may Allah be pleased with him) reports that the Messenger of Allah (peace and blessings be upon him) said: "Recite the Qur'an as long as your hearts are united upon its (meanings), but when you begin to differ regarding its understanding, then stand up (i.e., stop reciting it together)."