Mishkat al-Masabih #277

Shabib b. Abu Rauh reported on the authority of one of the companions of God’s messenger that God’s messenger prayed the morning prayer and recited Ar-Rum*, but became confused about it. When he finished the prayer he said, “What is the matter with people who pray along with us without performing the purification properly? It is only those who cause us confusion about the Qur’an.” *Qur’an, xxx. Nasa’i transmitted it.