Disliked dates under this text: 9, 10, 11, 12 and 13 Dhu al-Hijjah.
Case 1: 8 Dhu al-Hijjah is not one of these five specific dates.
Case 2: 12 Dhu al-Hijjah is among the days of Tashriq.
This compares only the dates discussed here; the other requirements of Umrah remain in force.