The Prophet most known for his exceptional beauty is Prophet Yusuf (Joseph) (peace be upon him), as described in the Quran and Islamic traditions. He was renowned for his stunning appearance, which caused envy and even led to his being sold into slavery. His story in the Quran is referred to as "the best of stories," emphasizing the importance of his life and the divine lessons it teaches.
However, it is crucial to understand that beauty is not just about physical appearance but also about inner qualities like faith, compassion, and righteousness. All prophets, including Prophet Muhammad (peace be upon him), were exemplary individuals with both inner and outer beauty, leading exemplary lives and conveying divine messages.