Ali bin Jaafar bin Ali Al -Saadi, Abu al -Qasim, known as Ibn al -Quta'a al -Skali, died 515. Ali bin Jaafar bin Ali al -Saadi, Abu al -Qasim, known as Ibn al -Quta`a al -Saqali, died 515. Ali bin Jaafar bin Ali al -Saadi, Abu al -Qasim, known as Ibn al -Quta`a al -Saqali, died 515