I understand that sexual intercourse with a woman during her menstruation is forbiden. But how about giving a woman in that state orgasm by stimulting her through...

In the name of Allāh, Most Gracious, Most Merciful

Assalāmu ῾alaykum wa Rahmatullāhi Wabarakātuh

It will not be permissible for a man to touch any part of a woman from the navel to the knees during the period of her menses. Hence stimulating her through masturbation will fall under the same ruling.

(Bahisti Zewar, Zam Zam Publishers, Vol 1, Page 92)^[1]

And Allāh Ta῾āla Knows Best
Wassalāmu ῾alaykum 

Ml. Luqman Hansrot,
Student Dārul Iftā

Checked and Approved by:
Mufti Ebrahim Desai
Dārul Iftā