Shaykh Ibn ‘Uthaymeen was asked:
What is your opinion regarding some women who are easy going and free when talking to men? It is hoped that you could offer them (some) words of guidance; and may Allaah reward you with good.
“It is not permissible for a woman to extend her speech beyond that which is necessary with men who are not her mahram. This is because it leads to fitnah, and Allaah (Tabaaraka wa Ta’aala) says:
‘…then be not soft in speech, lest he in whose heart is a disease should be moved with desire, but speak in an honourable manner’
[Soorah al-Ahzaab: 32]
(So) she must speak to the (market) trader in accordance with her needs, without extending (her speech with him). This is because Shaytaan flows through the son of Aadam as blood flows. And how many a woman says that she is far removed from fitnah, however, Shaytaan is still with her in order to invite her to the fitnah.
It is possible that she has just left (the company of) a man with whom she unnecessarily extended her speech with, and then Shaytaan whispers evil thoughts to her until she returns back to this man and the first words (they exchange) become the sparks (which initiate the fitnah) and the final words – a blazing inferno (when they have both fallen into the fitnah); and refuge is sought in Allaah!
So it is required of the woman to fear Allaah and not to succumb to such speech, and nor to extend speech beyond that which is necessary. And an example of this – and it is indeed an evident scourge, rather a major scourge – and that is what occurs by way of the telephone.
So there are many pathetic fools who dial any random number (in the hope of speaking to a woman) and (then they find) a woman (who eventually) speaks to them. So he says words of affection to her and they continue like this again and again. He then records their conversations – and this is a problem, because he will never leave her alone. So he records all their conversations, and when matters turn ugly (between them), he says to her: ‘Either you do (such-and-such) or I will give (the recordings) to your son or brother or father or other than them, so they can hear your voice (and what we talked about).’
So because of this, I warn the women from (unnecessarily) extending conversation with men; indeed it is a danger of immense proportions, and we ask Allaah for safety from the fitan.”
diary of a mujahidah
From: I’laam al-Mu’aasireen bi-Fataawa Ibn ‘Uthaymeen (pp. 391-392)