He is large of body.
(al-Uqayli, an-Najmu al Saqib)
His brow is clear. His abdomen is large, the space between his thighs is broad. (Fera Idu Fevaidi'l Fiqr,)
The space between his thighs is open... (Ibid)
The Mahdi is from the line of Hassan (ra). There is space between his legs. (as-Suyuti, Portents of the Mahdi, p. 22)
His ... brow is wide. He will fill Earth with justice and hand out goods in abundance. (Ibid., p. 22)