Islam is a religion practiced by Muslims. Islam believes that there is one true God and that Mohammed (pbuh) is his prophet. Some Muslims on Soyjak.party wage Jihad against Swedes, deformed posters, the country of Israel, LGBT, and furries by posting gore imagery, often from ISIS videos, and making Lee-style threats and wishes of violence towards other posters. Since all Muslim posts on soyjak.party tend to have the same content and style, it's most likely that the Muslim population there is limited to only one or two schizos. They are also confirmed Reddit users.  Soot has cracked down on certain Islamic content on soyjak.party that he believes could get him in trouble with the website's webhoster,  but since then has taken a more lenient stance toward such content. 
Captain Coal is known to be affiliated with Islam.
Allahu Akbar - Literally "God is great", but in practice usually means "TIME TO BLOW MYSELF UP!"
Nasheed - A nasheed (Arabic: singular نشيد 'nashīd', plural أناشيد 'anāshīd', meaning: "chants") is a work of vocal music that is either sung a cappella or with instruments, according to a particular style or tradition within Islam. Nasheeds are sometimes uploaded to soyjak.party.
Hadith - Sayings or actions of the Prophet Muhammad that were recorded by his companions and later collected and preserved for later generations. They help to elaborate on certain teachings, beliefs, and verses in the Qur’an.
Sunnah - The example or practice of the Prophet Muhammad. Much of what is known about the Sunnah is from the collection of sayings or reports known as hadith, or prophetic traditions.
Surah - A chapter of the Qur’an. There are 114 surahs in the Qur’an.