Do you absolutely need to know Arabic attend Al-Azhar University in Egypt Or can learn it there as well?

You do not absolutely need to know Arabic to attend Al-Azhar University. However, knowing Arabic is essential for successfully completing your studies. While some introductory courses might be offered in English or other languages, the vast majority of instruction, academic materials, and daily life at the university are conducted in Arabic. Therefore, while you can learn Arabic there, it's highly recommended to have at least a foundational level before enrolling to avoid significant academic challenges. Learning Arabic alongside a demanding academic program will be extremely difficult.