28-26 Muhammad ibn al-Hassan ibn Ahmad ibn al-Walid - may God be pleased with him - narrated that Muhammad ibn al-Hassan al-Saffar quoted Muhammad ibn Abdul Jab’bar, on the authority of Abdullah ibn Muhammad al-Hijal, on the authority of Sa’alabat ibn Maymun, on the authority of Abdullah ibn Hilal that Abu Abdullah as-Sadiq (MGB) said,

“God’s Prophet (MGB) taught Ali (MGB) a gate to knowledge which opens the doors to one-thousand gates to knowledge each of which opens up to the gates to another one- thousand gates.”