Q: “Is the Friday bath (ghusl) obligatory upon a woman?”
“If the Friday prayer fundamentally is not obligatory upon her, then how can the subsidiary issue (the bath) be obligatory when the fundamental (the prayer) isn’t?”
 Shaikh Bin Baaz, Shaikh Ibn al-`Uthaimeen and Shaikh Fawzaan likewise said that the Friday bath is specifically for men – those who must attend the Friday prayer – not women.
[al-haawee min fataawaa ash-shaikh al-albaani 447 / asaheeha translations]
Questioner: “If the Day of ‘Arafah coincides with Friday, and if a woman becomes pure from menstruation on Thursday or a traveler returns home on Thursday, is it allowed for such a person to fast on Friday alone for the Day of ‘Arafah?”
Shaikh al-Albaani: “No. Is it obligatory to fast on the Day of ‘Arafah?”
Shaikh al-Albaani: “And is it allowed to fast on Friday alone?”
Shaikh al-Albaani: “So then, if the prohibition conflicts with the allowance, then the prohibition is given precedence over the allowance. So the answer (to your question) is that it is not allowed.”
[silsilatul-hudaa wa-nnoor 484/5 / asaheeha translations]
~Reconciling between the two hadeeths:
‘Don’t fast on Saturday unless it is obligated upon you, and even if you don’t find anything but a bark of a tree, chew on it’
‘Don’t fast on Friday except by also fasting a day before it or a day after it’~
“The one who has in his mind this general prohibition of all fasts that fall on Saturdays except those that are obligatory which must be done, we say to him: don’t fast on Friday to thereafter fast on Saturday. As for the one who fasts on Friday (alone) because he doesn’t have knowledge of this prohibition, then we say to him: fast Saturday along with Friday.
There is still the generality of the hadeeth: ‘Don’t fast on Saturday unless it is obligated upon on.’ It does not contradict with the command to fast on Saturday with Friday for the one who has already fasted on Friday. In such a case, his fasting on Friday singly is prohibited, so to be free from falling into this prohibition, he is obligated to fast on Saturday.
Whoever fasts on Friday not knowing that it is forbidden to fast on it alone, then he (also) fasts on Saturday, because he is obliged to fast in this situation. But the one who knows, then he is not allowed to fast on Friday except if he had already fasted on the Thursday before it.”
 Saheeh at-Tirmidhee 744, Saheeh Ibn Maajah 1413
 Saheeh al-Bukhaari 1985
[silsilatul-hudaa wa-nnoor 495/4 & 669/24 / asaheeha translations]