It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him and his family) forbade a person from reciting aloud before and after the Isha prayer, and from causing fellow worshippers to make mistakes.

. (Second chain) The Messenger of Allah, peace and blessings be upon him, forbade people from reciting the Qur'an aloud to one another between Maghrib and Isha.

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) was observing i'tikaf and delivered a sermon to the people, in which he also said: Beware! Indeed, when any one of you stands in prayer, he is whispering to his Lord, so he should understand the words of the whispering that he is making to his Lord, and (also remember that) no one should raise his voice in recitation over others during prayer.

It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that Sayyiduna Abdullah bin Huzafah Sahmi (may Allah be pleased with him) was praying and reciting in a loud voice. The Noble Prophet (peace and blessings be upon him) said to him: Ibn Huzafah! Do not make me hear, make your Lord hear.

Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) narrates: The Messenger of Allah (peace and blessings be upon him) was in i'tikaf. He heard people reciting (the Qur'an) aloud, while he was in a tent. He lifted the curtain and said: Beware! Surely each one of you is whispering to his Lord, so let no one harm another, and let no one recite aloud near another in prayer.

It is narrated from Sayyiduna Bayazi (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) came to the people while they were praying and their voices were raised with recitation. He (peace and blessings be upon him) said: Surely, the one who is praying is whispering to his Lord, so he should pay attention to whom he is whispering, and no one should recite the Qur'an aloud over another.