[20].Surah Taha [Tâ-Hâ]: Ayat 62-64

Ayat 62. Then they debated with one another what they must do, and they kept their talk secret.

Ayat 63. They said: "Verily! These are two magicians. Their object is to drive you out from your land with magic, and overcome your chiefs and nobles.

Ayat 64. "So devise your plot, and then assemble in line. And whoever overcomes this day will be indeed successful." 

[Tafseer] They knew that they had here to deal with no ordinary man, but a man with powers above what they could conceive of. But evil always thinks evil. Judging Moses and Aaron by their own standards, they thought that these two were also tricksters, with some tricks superior to their own. All they had to do was to stand together, and they must win. I construe 20: 63-64 to be their private talk among themselves, followed by their open challenge to Moses. Your most cherished institutions,' i.e., 'your ancestral and time honoured religion and magic'. Muthla, feminine of Amthal, most distinguished, honoured, cherished. Tariqah = way of life, institutions, conduct. Presumably Pharaoh was in this secret conference, and he promises the most lavish rewards to the magicians if they overcome Moses. That-but I think more than that-is implied. That day was to be the crisis: if they won then, they would win all along, and Moses and his people would be crushed.  

Hazrat Ibn Abbas (May Allah be pleased with him) said: The Messenger of Allah [SAWW](PBUH) 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, Hadith # 3905] 

Lesson : as mentioned above in Surah Taha Ayat 63."drive you out from your land with magic" In this Hadith, astrology has been regarded a part of magic. In Islam the learning of magic has been held equivalent to infidelity. Thus, it is evident that in Islam, astrology and soothsaying are highly dangerous, and learning them is a great sin. Astrology here stands for that pseudo-science on the basis of which future events are predicted with reference to the movements of stars. There is another science called astronomy by means of which timings of sunrise and sunset are calculated. This branch of science, however, is a genuine science because it is based on experiment and observation.