What is the ruling on a woman teaching women in the mosque?

Question:
In the name of Allah, the Most Gracious, the Most Merciful. Honorable Shaykh, in recent times, it has become common for women to teach women in the mosque, where many women gather around this woman. Some scholars have issued a ruling that this is an innovation (bid'ah). What is the validity of this ruling? May Allah reward you with good.

Answer:
There is no doubt that it is better for women to be in their homes. The Messenger (peace and blessings be upon him) said:
It is known from the Sunnah during the time of the Prophet (peace and blessings be upon him) that women would go out to pray with the Muslims. They would also listen to the lessons delivered by the Messenger (peace and blessings be upon him). They would listen to them and ask questions if something was unclear to them. As for holding gatherings for women...
...in the mosques, this is something not known in the history of the Muslims. This is not known in the history of the Muslims: that there should be gatherings for women in the mosques. Rather, their gatherings should be in their homes. The home is more private for them, safer, and more in accordance with the Sunnah. Their homes are better for them. Yes. And if women were to be bold and do this, we would go out and hold gatherings in the mosques. This would lead them to going out of their homes, and lead them to appearing in public, and would open for them the closed doors, the closing of which is better for them than opening them, because of the fitnah (trial, discord or temptation) involved. Matters start little by little, then they multiply. The beginning of a thing is easy, then it grows and becomes difficult, and after that, it is hard to prevent.