It is not permissible to sell something that will be used for sinful purposes

This hadeeth was narrated by al-Bukhaari, Muslim and others in several places and with several isnaads, such as the report narrated by al-Bukhaari in the chapter on trade (tijaarah), concerning what it is makrooh for men and women to wear, via Saalim ibn ‘Abd-Allah ibn ‘Umar from his father who said: The Prophet (peace and blessings of Allah be upon him) sent to ‘Umar a hullah (two piece suit) made of silk, and he saw it on him (i.e., saw him wearing it). He said: “I did not send it to you for you to wear it, for it is worn by one who has no share in the Hereafter. Rather I sent it to you so that you can benefit from it” – i.e., sell it. This hadeeth indicates that it is permissible to deal in clothes that we are permitted to use in one way but not in another, and it is permissible to give them as gifts and donations, but the one to whom it is given or donated has to use it the manner which is permitted, not in the manner that is forbidden. For example: 

Gold jewellery, weapons, knives, grapes, etc, which can be used in permissible ways or in haraam ways. It is permissible to deal in them and to give them as donations and gifts, so long as the one who buys them or is given them will use them in permissible ways, such as selling them, giving them, etc, and he will not make use of them in haraam ways. 

But if the thing is something which it is haraam to use in any way and under any circumstances, then it is not permissible to deal in it or to give it as a gift, such as pigs, lions and wolves. There is nothing in the hadeeth to indicate that it is permissible to sell the things mentioned, so it is not correct to draw an analogy between selling cigarettes, tobacco, and men’s and women’s bathing suits, and selling things that may be used in some ways but not others or in some situations and not others, because it is haraam to use these things in all cases. 

And Allah is the Source of strength.