ABRAHAMIC RELIGIONS

ABRAHAMIC RELIGIONS: JUDAISM, CHRISTIANITY AND ISLAM.

Judaism, Christianity and Islam are sometimes referred to as the "Abrahamic religions" https://en.wikipedia.org/wiki/Abrahamic_religions because of the progenitor role Abraham plays in their holy books.

God promised Abraham that through his offspring, all the nations of the world will come to be blessed (Genesis 12:3), interpreted in Christian tradition as a reference particularly to Jesus, son of Mary. https://en.wikipedia.org/wiki/Mary_in_Islam

All three religions consider Abraham the father of the people of Israel through his son Isaac (cf. Exodus 6:3, Exodus 32:13) by his wife Sarah. https://en.wikipedia.org/wiki/Sarah

For Muslims, Abraham is a prophet of Islam and the ancestor of Muhammad through his other son Ishmael - born to him by his second wife, Hagar. https://en.wikipedia.org/wiki/Hagar

In Islam, Hagar's story is alluded to in the Qur'an, but her name is not mentioned. Her role is elaborated in Hadith. https://en.wikipedia.org/wiki/Hadith

Hagar was the mother of Abraham's son, Ishmael, who is regarded as the patriarch of the Ishmaelites i.e. the Arabs.