Neo-Platonist influences on this sect can be seen in the Epistles of the Brethren of Purity, and most sub-sects of this sect insist upon esoteric or hidden knowledge known as batin as opposed to the exterior meaning known as zahir. One "migration commune" of this religion was established in the ninth century. In addition to the now extinct Qarmatians, this sect includes a subgroup that currently reveres Aga Khan IV as the Imam of Time and celebrated his Golden Jubilee in 2007. In 930 members of one subgroup of this sect stole the Black Stone from the Kaaba claiming that the Day of Judgment was at hand, and that subgroup also desecrated the Well of Zamzam with corpses. From the fortress of Alamut in the Alborz Mountains, members of this sect were brainwashed by Hassan-i Sabbah and called Hashshashin until their destruction by Hulagu Khan. Currently divided into the Mustali and Nizari sects, for 10 points, name this sect of Shi'a Islam that takes its name from the son of Ja'far al-Sadiq 
Neo-Platonist influences on this sect can be seen in the Epistles of the Brethren of Purity, and most sub-sects of this sect insist upon esoteric or hidden knowledge known as batin as opposed to the exterior meaning known as zahir. One "migration commune" of this religion was established in the ninth century. In addition to the now extinct Qarmatians, this sect includes a subgroup that currently reveres Aga Khan IV as the Imam of Time and celebrated his Golden Jubilee in 2007. In 930 members of one subgroup of this sect stole the Black Stone from the Kaaba claiming that the Day of Judgment was at hand, and that subgroup also desecrated the Well of Zamzam with corpses. From the fortress of Alamut in the Alborz Mountains, members of this sect were brainwashed by Hassan-i Sabbah and called Hashshashin until their destruction by Hulagu Khan. Currently divided into the Mustali and Nizari sects, for 10 points, name this sect of Shi'a Islam that takes its name from the son of Ja'far al-Sadiq one major subgroup of which included the Seveners.
Neo-Platonist influences on this sect can be seen in the Epistles of the Brethren of Purity, and most sub-sects of this sect insist upon esoteric or hidden knowledge known as batin as opposed to the exterior meaning known as zahir.
{Ismailism} [accept {near}-{word} equivalents; accept “{Seveners}” until {Aga Khan IV} is {spoken}]