a) If the skies are not clear or are obscured due to dust, smoke, mist, etc. then the declaration of one upright Muslim, whether man or woman is sufficient.
b) If the skies are clear and no obscurity exists due to dust, mist, etc. then the testimony of even a few individuals will not be sufficient. The Khabar (information) of such a large group of people that would necessitate certainty or overwhelming assurance is required. This is required as the prevailing sky condition warrants that a large group of people sight the moon and that the sighting would not normally be limited to a few individuals.