al-Sharif al-Radi (d. 406 AH) · Thaqalayn library edition, reproduced verbatim
ثم أقبل (عليه السلام) على الناس فقال : أَيُّهَا النَّاسُ، إِيَّاكُمْ وَتَعَلُّمَ النُّجُومِ، إِلاَّ مَا يُهْتَدَى بِهِ في بَرٍّ أَوْ بَحْر، فَإِنَّهَا تَدْعُو إِلَى الْكَهَانَةِ، والمُنَجَّمُ كَالْكَاهِنِ، وَالْكَاهِنُ كَالسَّاحِرِ، وَالسَّاحِرُ كَالْكَافِرِ! وَالْكَافِرُ في النَّارِ! سِيرُوا عَلَى اسْمِ اللهِ.
Then Amīr al-mu’minin advanced towards the people and said: O people ! Beware of learning the science of stars except that with which guidance is sought on land or sea, because it leads to divining and an astrologer is a diviner, while the diviner is like the sorcerer, the sorcerer is like the unbeliever and the unbeliever would be in Hell. Get forward in the name of Allāh.
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