Astrology and Palmistry : Differentiating the means from cause
The general principle regarding “means” (asbāb) is that they should not be regarded as the “cause”, rather considering them as a means to conclude the outcome is permissible. However, sharīʿah has excluded ʿulūm al-nujūm (astrology) from this principle. This means that sharīʿah has strictly prohibited deducing outcomes using astrology as a means (and not a cause).