Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 2 months ago

The Prophet Muhammad was granted the maximum knowledge by Allah as it is in Quran (4:113) and was the most knowledgeable in every field of knowledge.

It is wrong to claim that he was unable to read or write. He was sent to teach human being the knowledge of the Book and the wisdom which means that he had all the knowledge.