Who Breaks a Woman's Wudu?

A woman's wudu is broken by touching a man with desire. It is also important to note that:

According to the provided reference, touching a woman with desire breaks a man's wudu, and it does not specify that touching a man with desire is what breaks a woman's wudu. However, based on common Islamic teachings, the same rule applies to women. Therefore, if a woman touches a man with desire, this breaks her wudu.
The mahram status is not a factor in this regard. That means that whether the man is a non-mahram or otherwise, the touch will break her wudu if desire is involved.
The mere physical touch without any desire does not break wudu.

Breakdown of Wudu Breaking

The following actions will invalidate wudu:

Touching a member of the opposite sex with desire: If a woman touches a man with desire, that breaks her wudu. If a man touches a woman with desire, that breaks his wudu.
Bodily discharge: This includes passing urine, stool, or wind.
Deep sleep: Falling into a deep sleep invalidates wudu.
Loss of consciousness This includes passing out.
Intoxication Being under the influence of alcohol, drugs, or any other substance that affects the mind.

Touching a member of the opposite sex without desire: If there is no feeling of desire, just a normal physical interaction, the wudu remains valid.
Touching a mahram: Touching a family member whom one is not allowed to marry does not break wudu. This is only with respect to the physical touch itself, and does not mean that a mahram can be touched with desire. Desire still invalidates the wudu.
Normal day-to-day interactions: Things like shaking hands in a neutral way, or incidental contact with others in a crowded space, do not invalidate the wudu, unless accompanied by feelings of desire.

Here are some practical insights on how this applies to daily life:

Intention Matters: The intention behind the contact and the feelings experienced during the interaction matter. If the contact is normal and does not invoke desire, wudu remains valid.
Avoid Unnecessary Contact: Where possible, Muslims should avoid unnecessary touching of the opposite sex to maintain wudu.
Be mindful: If there is any doubt about whether desire was involved, it is advisable to renew the wudu to be on the safe side.

Action	Does it Break Wudu?
Touching a man with desire (by a woman)	Yes
Touching a woman without desire (by a woman)	No
Bodily discharge	Yes
Deep sleep	Yes
Touching a mahram with desire	Yes
Touching a mahram without desire	No

Therefore, according to Islamic teachings, a woman's wudu is broken by touching a man with desire.