Belief of divine savior has deep roots in monotheistic religions

Imam Khomeini, the late founder of the Islamic Republic explained through his theological works that belief of divine savior have not only deep roots in basic Islamic sources such as Quran and Sunnah, but also well established in all other divine religions as well.

The Auspicious Birthday of Hadrat Qa'im (the 12th Imam) (may Allah expedite his advent)

The 15th of Sha`ban

I do extend my congratulations on the occasion of the glorious birthday of the Imam of the Ummah, the essence of the creation and the inheritor of the prophet hood, the Master of the Age ( may Allah expedite his glorious advent ) to all the Muslims and the oppressed people.[1]

Why did Imam believe that the gate to divine knowledge would be shut for ever without the Quran?

Seyyed Ahmad Khomeini Admired his Elder Brother

Late Hojjat al-Islam Seyyed Ahmad Khomeini had frequently praised his elder brother martyr Seyyed Mostafa, saying that his sibling was unique in knowledge and has been decorated with divine virtues.

Imam highly trusted Seyyed Ahmad Khomeini

Imam Khomeini had highly trusted his learned son during tough years of struggle against the Shah regime and its backers.

Imam Khomeini: I hope that you youth will overcome your difficulties by (attaining) knowledge, and ...

Sahifeh-ye-Imam, Vol 6, Page 307

Supplications by Imam Zain-ul-Abedin (PBUH) contains deep Quranic concepts, treasures of mysticism

Imam Khomeini, the late founder of the Islamic Republic maintained that divine-oriented supplications by Ali ibn Husayn Zain-ul-Abedin (PBUH) contain treasure of mysticism, deep Quranic cconcepts and several discipline of knowledge.

Supplications by Ali ibn Husayn Zain-ul-Abedin contain treasure of mysticism

Imam Khomeini maintained that supplications by Imam, Ali ibn Husayn Zain-ul-Abedin( PBUH), infallible successor of the honorable prophet contain treasure of mysticism and Quranic interpretation.