Hafiz Muhammad Ameen
(1) The buying and selling of alcohol is, according to Islamic law, impermissible and prohibited. There is consensus (ijma‘) of the Muslim ummah on this matter.
(2) It is understood that when the person presented alcohol as a gift to the Messenger of Allah (sallallahu alayhi wa sallam), it was due to the previous permissibility. He was unaware of its prohibition, which is why the Prophet (sallallahu alayhi wa sallam) did not hold him accountable. It is thus clear that if a person commits something prohibited or considers a prohibited thing to be permissible, and he genuinely does not know the relevant Islamic ruling, then it is necessary to inform him. For committing such a sin or act of disobedience, he will not be subject to blame or punishment.
(3) This blessed hadith is evidence that a person may ask another about certain secrets. Afterwards, if it is necessary to keep those secrets hidden, then they should be kept hidden; otherwise, they may be mentioned and disclosed. The meaning of the answer given by Ibn Abbas (radi Allahu anhu) is that grape juice is used only for making alcohol; it has no other use. Therefore, extracting grape juice and selling it to those who make alcohol is prohibited. However, if that juice can be used for some lawful (halal) purpose, then making and selling it is permissible, provided there is certainty that it will not be used to make alcohol. The principle of the Shari‘ah is that whatever is prohibited, its trade, buying and selling, and all transactions are forbidden, for example: alcohol, carrion, idols, swine, etc. However, if something is prohibited for one person but permissible for another, then its trade, buying and selling, and all transactions are allowed—even the person for whom it is prohibited may engage in its transaction, such as gold and silk. These are prohibited for men to wear, but not to possess; therefore, men may trade and transact in them. They may also be given as gifts.
Source: Sunan Nasa'i: Translation and Benefits by Shaykh Hafiz Muhammad Amin Hafizullah, Page: 4668