3-261 Muhammad ibn Ibrahim ibn Ishaq al-Taleqani - may God be pleased with him - narrated that Al-Hassan ibn Ali al-Ado’we quoted Ebad ibn Saheeb (ibn Ebad ibn Saheeb), on the authority of his father, on the authority of his forefather, on the authority of Ja’far ibn Muhammad as-Sadiq (MGB),

“A man asked the Commander of the Faithful Imam Ali (MGB) about his medium height, big belly and lack of hair on his forehead. The Commander of the Faithful (MGB) replied, ‘The Blessed the Sublime God has created me neither tall nor short, but of medium height so that I can cut a short enemy into two pieces from head to toe, and cut a tall enemy into two pieces from his waist. My belly is big since the Prophet (MGB) opened up to me a gate of knowledge from which a thousand doors to knowledge shall open up. Therefore, knowledge gathered up in my belly. And the reason why there is no hair on my forehead is that I have always worn a head armor and gone to fight with the enemy.”