The ruling on touching the mushaf and writing a verse for a menstruating woman

The questioner:
Also, this woman says: I teach my children the Qur'an and help them memorize it. When the time for menstruation comes, I may need to help my young son find the location of a surah in the Qur'an. Is it permissible for him to touch the mushaf, or to write a word from the Qur'an so he can learn how to pronounce it?

The Shaykh:
She may touch the mushaf through a barrier, or by means of a ruler, a pen, or something similar; she must not touch it directly.

The questioner:
Yes. Yes. As for writing a word from the Qur'an so he can learn how to pronounce it, he writes it for him on a blackboard or on…? I am standing

The Shaykh:
There is a statement from the scholars on this, but a menstruating woman does not touch the written Qur'an. As for writing, it may be said that this is through a barrier, because the pen acts as a barrier between her and the letters of the verse. Yes.