Muhammad ibn al -Hasan ibn Ya`qub ibn al -Hasan, bin Muqasim al -Attar, Abu Bakr died 354. Muhammad ibn al -Hasan ibn Ya`qub ibn al -Hassan, bin Muqsim al -Attar, Abu Bakr died 354. Muhammad ibn al -Hasan ibn Ya`qub ibn al -Hassan, bin Muqasim al -Attar, Abu Bakr died 354 Muhammad ibn al -Hasan ibn Yaqoub ibn al -Hasan, bin Muqasim al -Attar, Abu Bakr died 354