Dear Mufti sahab
Assalamu Alaikum
I want to know a masla that is; how many parts of a lawful animal are Haram to eat?

In the name of Allah the most Gracious the most Merciful
The answer to your question is as follow:
Seven parts of the animal are prohibited to consume: a) male genitals, b) female genitals, c) testicles, d) the bladder, e) gall bladder, f) glands, g) spinal marrow.(Ahsanul Fataawa). And Allah Knows The Best