Complex sentence: During the Tang Dynasty, Sa'd's delegation of the Prophet Muhammad's Companions to China Landed in the coastal city of Guangzhou in the southwest of China, where they founded the first mosque in the country, Huaisheng Mosque, located on Guangta Street.
Split into simpler sentences: During the Tang Dynasty, Sa'd led a delegation of the Prophet Muhammad's Companions to China. Landing in the coastal city of Guangzhou in the southwest of China, they founded the first mosque in the country, Huaisheng Mosque, located on Guangta Street.