The perfect religion is one that all believers can agree on. That is difficult to find because you have the hypocrites out there that say we believe but just look for the faults in everything. I have selected everything that I can find to make a collection of agreed upon details from both Christians and the Muslims.
Truth #1, no matter how hard I try to word this someone will pick even the simplest details apart to find a flaw.
Truth #2, there is only The One Holy God of creation and is the only one with the right to be worshiped.
Truth #3, Jesus/Isa was created by the spirit in the womb of the Virgin Mary by The One Holy God of creation and had no physical earthly father.
Truth #4, "Ten Commandments...."
Truth #5, Jesus/Isa will return at the end of times to rule and teach that there is The One Holy God and is the only one with the right to be worshiped.
Truth #6, we must pray and give praise all of the time to The One Holy God of creation.

Similarities between Biblical and Muslim Cultures
BIBLICAL RELIGIOUS CUSTOMS
Greeting of peace (Luke 10:5)
Washing of hands and feet before worship (Exodus 40:31-32)
Removal of shoes in God's presence (Exodus 3:5)
Bowing prostrate in prayer (Psalm 95:6)
Animal sacrifice (Passover) (Deuteronomy 16:1-6)
Pilgrimage to Jerusalem (Acts 8:26-28)
Women covering their heads during worship (I Corinthians 11:5-6)
Circumcision (Luke 2:21)
Offering a sacrifice for the first-born (Luke 2:24)
Prolonged fasting (Exodus 34:28, I Kings 19:8, Matt. 4:2)
Modesty and silence of women (1 Corinthians 14:34)
Abstinence from pork (Leviticus 11:7)
MUSLIM PRACTICES
As-salamu alai kum (peace be unto you)
Ablutions, "wudu"
No shoes inside the mosque
Prostrate during prayer, "sajda"
Eid-ul Adha / Eid-ul Qurban, Feast of animal sacrifice
Pilgrimage to Mecca, "hajj"
Women wear head-covefing
Circumcision, "khilan"
Offering of sacrifice at birth of a child, "akika"
Thirty-day fast during Ramadhan, "saum"
Muslims abstain from eating pork