The Prophet's family have said that Imam al-Husayn resembles John the Baptist, so how similar are they? And is this one of the doors for Christians to connect with the Ahl al-Bayt (peace be upon them)?
References
Peace be upon John
Quran 19:12-15 (Pickthal)
Muslims, Jews, Christians and Sabians who believe in God will not grieve
Quran 2:62 (Oxford World Classics)
Imam al-Husayn mentioning John the Baptist’s killing at every halting-place
al-Mufid, al-Irshad, vol. 2, p. 132
Bibliography
al-Irshad
al-'Ukbari, Muhammad b. Muhammad, al-Irshad fi Ma'rifat Hujaj Allah ala al-'Ibad. 2 vols. Beirut: Ahlulbayt Foundation, 2008.
al-Irshad
al-'Ukbari, Muhammad b. Muhammad, Kitab al-Irshad The Book of Guidance into the Lives of the Twelve Imams. Translated by I. K. A. Howard. London: Muhammadi Trust, 1981.
Kamil al-Ziyarat
Ibn Qulawayh, Muhammad b. Ja'far, Kamil al-Ziyarat. Qom: Nashr al-Fagaha, 1996.