Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The hill in a dream is a man of high status or a scholar. Ascending it indicates gaining high status and position. Descending from it indicates a decline.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
The hill indicates a noble woman. Sitting on it indicates empowerment and victory. A green hill indicates a righteous man.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
The hill is interpreted as collected wealth. Whoever sees that he owns a hill owns abundant wealth.