Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The telescope in a dream indicates high ambition and looking towards the future. It indicates the science of astronomy.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
Looking through a telescope indicates a long journey or waiting for news from a distant place.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
The telescope is interpreted as a knowledgeable man. Whoever sees that he owns one has befriended a scholar.