Bismillahi Al-Rahmani Al-Rahim

 Janaba And The Mosque (2)
Q
 As-salaamu 'alaikum,

"The (haidh) menstruating woman is not prevented from (passing) through the Masjid (as long as there is no fear of talawuth) nassan" [Matalib Uli al-Nuha fi sharh ghayat al-Muntaha 1/241]

"One of us would go through the masjid while in the state of janabah passing through" [Sharh Muntaha al-Iradat 1/82](coming from the 43rd ayah of al-Nisaa)

This permissibility is given in the Hanbali and Shafi'i Madhhab for something neccessary and it is better not to do so except when needed. This opinion is known to have come from: ibn Masood, ibn Abbas, Said ibn Al-Mussayib, al-Hasan al-Basri, Said ibn Jubayr, 'Amr ibn diynaar and Muhammad ibn salamah. (meaning not translation) [Al-Muwsuah al-Fiqhhiyah: 14/64]

Can you give me references for the following statement you made please:
"It would be permissible to someone needing to make ghusl pass through if they first made wudu"

Jazakallahu khaira, fi ri'ayati allah.

was-salaamu 'alaikum.

 A
 wa `alaykum al-salam wa rahmatullahi wa barakatuhu

What I wrote agrees with what you said. Unfortunately, Eudora is not always faithful with HTML formatting, particularly nested lists. Here's a slightly altered version of text with some typos and points cleared up.

It is unlawful for anyone to remain in the mosque if they
  • are drunk
  • are insane
  • are soiled with filth that may transfer to the mosque
  • need to make ghusl and the ghusl would be valid if they made it and they lack minor ritual purity (m: please note the three conditions here). In this last case--but not the first three--the person can enter and remain in the mosque if they first make wudu to lift the minor ritual impurity.
T he first three cases are straight forward, but the last one needs a few examples for clarification.
  • A woman's period ends during Isha`a and she wishes to attend the lectures at the mosque on her way home. If she first cleans herself from any menstrual blood and makes wudu, it is permissible for her to enter and remain in the mosque.
  • One of the places to make ghusl in your town is inside the perimeter of the mosque, and so anyone wishing to make ghusl is technically going to be inside the mosque. If the person first makes wudu, it is permissible for them to enter the mosque and remain to make ghusl.
I n sha Allah this cleans up the examples a bit.

Now, as for the point that women can pass through the mosque while they are menstruating with certain conditions: yes, this is correct the Zad Al-Mustaqni` lessons mention this. But this is not the same thing. In the issue here the topic is remaining in the mosque, not passing through; and in the issue here if the person makes ghusl it will bring about major ritual purification, but not in the case of menstruation. And there are other differences.

May Allah reward you for getting this clarified.

wa al-salamu `alaykum
--musa