IMHO, when comparing the following passages, the first from the Mishnah (Rabbinic law) and the second from the Qur’an, the resemblance is uncanny.
I understand Islam teaches that Mohammed incorporated various teachings from the Hebrew and Christian scriptures (Old Testament / New Testament) to create Islam. However, the following passage is present in the Qur’an, yet nowhere in the Hebrew or Christian Bible. Clearly, the passage was lifted from the books on Rabbinic law (Mishnah & Talmud), which predate the Qur’an by 400 years.
Mishnah / Talmud
Whoever destroys a single life is considered by Scripture to have destroyed the whole world, and whoever saves a single life is considered by Scripture to have saved the whole world.
Qur’an - (Sahih International)
Because of that, We decreed upon the Children of Israel that whoever kills a soul unless for a soul or for corruption [done] in the land - it is as if he had slain mankind entirely. And whoever saves one - it is as if he had saved mankind entirely. And our messengers had certainly come to them with clear proofs. Then indeed many of them, [even] after that, throughout the land, were transgressors. (Surah 5:32)