about the language in which the Qur'an was revealed in the time of the Companions (may Allah be pleased with them)?

The questioner : about the language in which the Qur'an was revealed in the time of the Companions (may Allah be pleased with them)?

The Shaykh : The reason is that the Qur'an was revealed in their language. Now, if a common person spoke to you in the colloquial dialect, would his speech be difficult for you? No, it would not. In their time, they understood classical Arabic just as we understand the colloquial dialect now.