There is no harm in trimming the eyebrows for the husband, without plucking them. This is permissible and there is nothing forbidden in it, if Allah wills. Also, there is nothing wrong with having female singers who do not sing anything contradictory, and do not use any prohibited musical instruments – in fact it is enjoined by the sharia to do so on the wedding.
According to the Hanafis, it is permissible for a woman to trim her eyebrows if she is doing so to adorn herself for her husband. The prohibition, and curse from the hadith is upon those who adorn themselves for the sake of strangers. Ibn Abideen says: Maybe the hadith is based on whether one adorned herself for the sake of strangers, and if not and there is hair on her face which makes her husband dislike her, then there is no prohibition for removing them. This is because adornment for women is required to make them better, apart from what there is no necessity for, such as plucking, and causing harm ( Rad Al-Muhtar on Dar ul Mukhtar 374-1)
According to the Malikis, it is permissible for a woman to cut her hair, apart from the hair on her head, and from this is plucking. They quoted the hadith on the woman who is forbidden from beautifying herself, such as the one whose husband has passed away, and the one whose husband is lost. (Al Fawakih Al Diwani 315-2)
The Shafi’s have said that it is permissible for a woman to trim her eyebrows if it is with the permission of her husband (Tuhfatul Muhtaj in the explanation of Al Minhaj 129-1). But An Nawawi one of the Shafi’ imams said in his explanation of the hadith that the act is forbidden, only if the woman grows a beard, or a moustache then it is not forbidden, in fact it is recommended she remove that hair. (Sahih Muslim 106-14, evidence Al Faliheen 495- 4)
It can be said then that the saying of the majority is the narration of Muslim in his Sahih of Bakrah bint Oqba that she “ entered on Aaisha RA and she asked her about Henna and Aaisha RA said: “ A good tree and pure water, and she asked her about removing body hair, she said “if you have a husband, and you could remove eyes and replace them with something better, then do it”
The hanbalis and ibn Hazm and some of the scholars are of the opinion that it is forbidden to shave the eyebrows, due to the clear hadith of cursing on the one who does so, and cursing are only for things which are forbidden. Ibn al Jawzi of the Hanbalis has said it is permissible to remove facial hair (moustache, and baby hair of the forehead) but he forbid anything beyond that. He said that the obvious in these hadiths is that it is forbidden to do these things, which have been prohibited in all circumstances. He took the exclusions of Ibn Masu’d RA of what we have narrated, and these include one of three things; either this was the act of the disbelieving women and this was who this hadith was addressing, or it is a way to seduce a man and this is not permissible, or it comes under changing the creation of Allah SWA such as tattoos which harm and cause pain to the body and there is no way of removing it or making it better.
The opinion of the Hanbalis is more common and correct, especially because shaping (thinning) of the eyebrows is one of the most common practiced done at beauty salons today, and they are done turning a blind eye to the ruling, and they do not differentiate from the immodest non muslim women, because when you do it once, you do it every time and if she doesn’t she is considered a disgrace.
Excluded from the prohibition is those things which have a reason to be removed, such as removing the disfigurement from the face of a woman such as thick eyebrows, that are so thick they resemble men’s eyebrows, so she can thin them until they no longer resemble men’s eyebrows, or they are joint (unibrow) so they resemble some men’s eyebrows, and it causes unwanted attention, and the husband dislikes it, so she may remove the hair that joins the two eyebrows. Also if the eyebrow is very uneven, she may fix it by removing some hair so that they look even, or she has surgery done to fix it if need be. The same applies when the eyebrow hair is sparse and inconsistent, so she removes what is inconsistent, and in general it is permissible to remove what is a disfigurement or causes attention, or causes embarrassment. Therefore, a woman is justified to remove some of her eyebrow only what is needed.
And the wise lawgiver, the Almighty Allah has allowed a woman to adorn herself for the sake of her husband in order to be in his view as he likes her and as mentioned previously, (when he sees her he is delighted).