Reference: Fawaa.id min Duroos Samaahatish-Shaykh ‘Abdul-‘Azeez ibn Baaz – Page 91
There is no harm in taking water which has been recited upon[1] into the bathroom.
Footnote:
[1] Water upon which the Qur.aan has been recited for the purpose of seeking a cure against an illness, magic, evil eye and jealousy.
