Ibn 'Abbas (May Allah be pleased with them) said:
The Messenger of Allah ﷺ said, "He who acquires a branch of the knowledge of astrology, learns a branch of magic (of which he acquires more as long as) he continues to do so."

[Abu Dawud].

وعن ابن عباس رضي الله عنهما قال: قال رسول الله ﷺ : "من اقتبس علمًا من النجوم، اقتبس شعبة من السحر زاد ما زاد". ((رواه أبو داود بإسناد صحيح))