Answered by our Shaykh, the ‘Allāmah, the Trustworthy Advisor, Abu ‘Abdirrahman Yahya bin ‘Ali Al-Hajoori
-may Allaah preserve him –
What’s the ruling on writing verses from the Qur’aan on saffron, then to dissolve it in water, to sprinkling it on a person afflicted with magic, for treatment purposes?
This is an innovation; it wasn’t performed by the Prophet ﷺ, nor have we -as far as we know- seen any evidence pointing to that the companions used to do this.
Translated by : Abu Ibrāhim Nāsir bin Rāshid Al-mamry
Original Fatwa : http://m.sh-yahia.net/show_s_fatawa_344.html