Muhammad (SAW) was referred to as al-Amin because he was

Muhammad (SAW) was referred to as al-Amin because he was trustworthy. The title al-Amin, which means "the trustworthy," was given to him by the people of Mecca due to his reputation for being honest, reliable, and trustworthy. Muhammad (SAW) was known for his integrity and trustworthiness, which earned him the respect and admiration of his community. Even before he received the revelation of Islam, he was already known as a man of high moral character and honesty, which made him a natural leader and peacemaker. His trustworthiness was a key factor in the success of his mission, as people trusted him to convey the message of Islam accurately and without distortion.