The ruling on greeting a non-mahram man and a woman on the phone

Question:
Please direct us, Honorable Shaykh, to the ruling on greeting a non-mahram man, such as a bus driver, for example, and the like. What is the method, especially if a woman’s voice has a certain distinctiveness? May Allah reward you with good.

Answer:
It is well known that a woman’s voice may lead to fitnah (trial, discord or temptation), or it may not. If a woman’s voice contains submission and softness that affects the heart of the one listening to it, then it is not permissible. Allah the Exalted said to the wives of His Prophet: “And do not…”…in….
with a known speech. And although this address is to the wives of the Prophet (peace and blessings be upon him), it is general for all the women of the ummah (the Muslim community); because the wives of the Prophet (peace and blessings be upon him) are the role model for the women of the ummah. In fact, the women of the ummah are more deserving of this guidance, and in their right I am sorry; because the wara' (scrupulousness) in the hearts of other women does not equal the wara' in the wives of the Prophet (peace and blessings be upon him). And with this, Allah forbade them from khudu' in the voice, and others are even more so. So if a woman’s voice leads to fitnah, then it is 'awrah (the part of the body that must be covered) for her to joke with a non-mahram man or to soften her voice for him such that there is pleasure in listening to it, which men would listen to. In that case, she lowers her voice.
As for speaking to the extent of necessity, meaning there is no fitnah in it, such as asking a man, or greeting him if there is no mafsadah (harm) in this, then there is nothing wrong with that. Speaking in a known manner, and we said a known speech, meaning there is no fitnah in it, and it is a customary speech between men and women. Yes.

The presenter:
May Allah reward you with good,