Today, there are two groups among the Muslims whose theories about crescent sighting only help to further divide the Muslims. The first group gives the greatest weight and most definitive consideration to astronomical calculations. The second emphasizes different sighting locations. Both groups adamantly claim that they derive their theories from Islaamic principles!
Members of the first group have clearly left the boundaries of proper application of the few texts that they refer to; and unfortunately, they are the louder voice among the two.
As for the second group, its members attempt to rely on authentic texts. However, once their initial objective is proven, its outcome leads to a paradox! They become forced to agree to differing and fall victim to indecisive speculation about the proper application of their theory.