Does the emergence of worms from the anus nullify ablution, whether they emerge completely or partially, and is it necessary to ascertain their wetness or the presence of impurity with them? And what is meant by "pure" in Al-Mawwaq's statement: "The well-known opinion is that an uncustomary discharge, such as worms emerging from the anus, whether they emerge pure or impure, does not nullify ablution"?

Scholars have differed regarding the nullification of ablution (wudu') due to the exit of worms from the anus. The majority of scholars hold that it nullifies ablution, as it is a discharge from a private part and contains moisture. The Malikis, however, do not consider it a nullifier, even if accompanied by moisture, and they favored its non-nullification.

The Malikis held three views on the matter: that ablution is not required at all; or that ablution is not required unless it emerges impure; or that ablution is always required.

The more cautious approach is to adopt the view of the majority and nullify ablution upon certainty of worms exiting. As for doubt, ablution is not required, nor is it obligatory to search for confirmation. The exit of part of a worm is like the exit of all of it.

If the exit of worms is continuous such that the worshiper does not find sufficient time for purity, then he is treated like a person with incontinence (sāhib al-salas) and performs ablution for each prayer after its time has begun.