Q 1 and 2:
Is it permissible for a Muslim to buy Halal (lawful) meat from places that also sell Haram (unlawful) meat,
even if each type is stored and packed in its own warehouse and refrigerator?Similarly, is it permissible to buy Halal foodstuff from a grand store that also sells Khamr (intoxicant) in another corner, bearing in mind that the store is owned by a non-Muslim?
Allah (Exalted be He) says:
Help you one another in Al-Birr and At-Taqwâ (virtue, righteousness and piety); but do not help one another in sin and transgression.
Thus, it is not permissible for a Muslim to help anyone in sin, transgression and violation of Allah's Sanctities. If a Muslim is able to seek the stores that only sell what is Halal (Part No. 13; Page No. 174) and abstain from those selling what is Haram, such as pork and the like, it is better to buy from them and not from those who sell Halal as well as Haram goods. However, if a Muslim is unable to find a Halal store, it is permissible to buy Halal meat and foodstuff from any store as long as both foods are kept separately. Allah says (Exalted be He):
So keep your duty to Allâh and fear Him as much as you can
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.