الجواب حامدا و مصلیا
It should be understood that the food of which a man has eaten of is generally lawful for a woman who is marriageable to him. Similarly, the food of which a woman has eaten of is lawful for a man who is marriageable to her. However, this will be disliked if done with lustful inclinations towards that (marriageable) person. Though, there is no impurity in the food of which someone else has eaten.
