Muslims believe human life originated with Adam, named as the first man and first prophet. Muslims believe all people are descended from Adam and his first wife Eve, who is also known as Hawa.
Human life was created by Allah, and Allah plays a part in the creation of all life.
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.Qur'an 5:32
Say, 'Come, I will recite what your Lord has prohibited to you. [He commands] that you not associate anything with Him and to parents, good treatment, and do not kill your children out of poverty; We will provide for you and them. (And do not approach immoralities - what is apparent of them and what is concealed.) And do not kill the soul which Allah has forbidden [to be killed] except by [legal] right. This has He instructed you that you may use reason.Qur'an 6:151
Muslims believe all human life is sacred, and that all people have souls. To end life undermines the will of Allah. Muslims believe the length of a human life is decided by Allah alone.