“The example of those who spend in the way of Allah is just like a grain that produced seven ears, each ear containing a hundred grains — and Allah multiplies the reward for whom He wills. And Allah is All-Embracing, All-Knowing.”
(Surah Al-Baqarah, 2:261)
ONLY that which is tayyib (pure) is Halal
That which is khabeeth (impure) is Haram
That which is tayyib is Halal, and that which is Halal is tayyib
The general ruling in all things is that it is permissible (allowed), unless proven otherwise.
The principle ruling in meat is that it is impermissible (haram), unless proven otherwise.