Abraham (Ibraheem in Arabic) is important to the Muslims because he is one of their important prophets in Islam. He was also a messenger of Islam to spread the word of Islam to the people of his nation. The story Abraham having to sacrifice Isaac is similar to the one in the Qur'an, but it was Ishmael (Ismaeel in Arabic) who was to be sacrificed instead.
Abraham was approached by God who made a covenant to restore the blessing that Adam lost in Genesis. He had two sons: Isaac and Ishmael
Christians get their beliefs from God through God revelation of The Bible to Christ who is a descendant of Abraham through his son Isaac who was also the son of Abraham's wife Sarah.
Muslims get their beliefs from God through God revelation of the Quran to Mohammad (starting in year 610 AD) who is a descendant of Abraham through Ishmael; being Abraham's first son.
According to the Genesis account -- Ishmael was not the son of Abraham's wife Sarah but the son of his other wife Hagar. It is a false accusation to say that Prophet Abraham got Ismael from Hagar without marriage. The prophet who forbids his followers from doing fornication sure will not bring a child through fornication and not through licit marriage. This is also specifically spelled out in the Bible in Genesis 16:3.
For Judaism, this link has the details:
http://judaism.answers.com/jewish-history/a-biography-of-abraham
Because he is the father of their ancestor, Ismael.
Abraham gave birth to the founders of these religions and taught them what they needed to know to bring happiness to the world.
Judaism, Christianity, and Islam religions.
Abraham is considered the father of Judaism, Christianity and Islam as the Old Testament's 5 books of Moses - The Pentateuch (books are: Genesis, Exodus, Leviticus, Numeri and Deuteronomy) are included in the Holy Book of Judaism that is Torah. Eventually he is considered as the father of Islam basically claims entire religions of Judaism and Christianity as "prophets" and predecessors of Islam.
Abraham founded Judaism. Christianity and Islam are daughter-religions of Judaism.See also the Related Links.Link: How Abraham founded JudaismLink: Was Islam's inception influenced by Judaism
Abraham.
Both Islam and Christianity originated out of Judaism.
Judaism, Christianity, and Islam.
For Judaism: http://judaism.answers.com/jewish-history/a-biography-of-abraham
Christianity, Islam, Judaism & even Baha'i all have a mutual ancestor: Abraham.
Christianity and Islam both trace their roots to Judaism.
The connection between Islam, Christianity and Judaism is that the three religions trace their history to the covenant between God and Abraham.
Prophet Moses, Abraham, Isaac, Joseph, David, Solomon all were Prophets in Judaism, Christianity and Islam
Christianity, Judaism and Islam