"a Hebrew patriarch" - Translation from English to Arabic

It was said the Hebrew patriarch Abraham himself built the Kaaba centuries before and that a sacred black stone it held within had fallen from the sky.
يقال أن النبى إبراهيم بنفسه هو من قام ببناء الكعبة من قرون مضت وأن حجرا أسودا محفوظ داخلها قد سقط من السماء