I work with non-Muslim women who do not cover their faces; is it permissible for me to advise them to cover their faces?

Question:
May Allah reward you, Honorable Shaykh. This questioner says: I am an employee at one of the hospitals, and there are non-Muslim women there who are disbelievers, and they uncover their hair. I advise them, and one of the brothers told me not to advise them because they are disbelievers and it is not obligatory for them to cover their faces. Is this correct?

Answer:
My brother, it is not obligatory for you to work in this place. It is obligatory for you to move from it to another job away from the women, so that you may save yourself, and not remain in this job which contains fitnah (trial, discord or temptation) and ikhtilat (free mixing of men and women), whether the women are disbelievers or Muslims. For women are a fitnah, and you are in a state of well-being, and there are many jobs, praise be to Allah, and there are many fields for seeking a livelihood. So, distance yourself from this field to another field.