Song of Solomon 5:16 is one of about 20 Bible Passages that Islam DESPERATELY tries to twist into a 'mention of Mohammed'. Islam is caught in a desperate problem. Mohammed CLAIMED that he was foretold in the Bible, and in Sura 7:157-158, the Quran claims DESCRIPTION of Mohammed can be found at least TWICE - in the TORAH and in eht GOSPEL (or Injeel, in Arabic).
In fact, Mohammed is never foretold as a Prophet in the Bible. But their desperation DRIVES THEM to make baseless claim after claim and weak argument after argument. EVERY mention of a CAMEL is imagined to be Mohammed.