(Note: The full, detailed exchange regarding these prohibitions and the mention of Al-Hasan ibn Ali can be found in the referenced documents). Sunnah.com Summary of Prohibitions Mentioned
However, the controversy usually stems from a variation or a similar narration within the same chapter that seemingly implies the Earth is flat. In some manuscripts and printings, the text was translated or interpreted to suggest that the sun sets in a muddy spring ( tain ) or that the Earth is spread out in a way that negates spherical shape.