Does trimming the mustache require ablution?
Chapter on What Nullifies Purification
Al-Mughni
Book of Purification
Primary text
The general consensus of scholars holds that trimming the mustache does not invalidate ablution. The general principles concerning the invalidators of ritual purity stand as the definitive position.
Supporting text
It has been related from Mujahid, Al-Hakam, and Hammad that trimming the mustache requires ablution. The majority of scholars hold the opposing view.