Why was a 9th century Viking woman buried with a ring that says ‘for Allah’ on it?

A ring found on a 9th century Viking woman's body may be evidence of trade links between Scandinavia and the Middle East during the Abbasid era.

http://www.washingtonpost.com/blogs/worldviews/wp/2015/03/18/why-was-a-9th-century-viking-woman-buried-with-a-ring-that-says-for-allah-on-it/?postshare=2011426759062712

Comments in response of the post

" ‪#‎AhmadibnFadlan‬, an Arab messenger sent from the Caliph of Baghdad to Tsar of Rus was captured by Vikings on his way there. He lived and tried to convert them to islam. He was the first to describe their lifestyle and habits in detail in a book!"

" i don't think it's a 'book' as much as a couple manuscripts that date to centuries after Ahmad b. Fadlan - the manuscripts are based on his chronicles and this ring dates to the century in which Ahmad documents his travels with the Norse people (among others)."

"İ red that book it was a Book translate to Turkish, it had about 100 pages, the journey begins from Baghdad, the Khalief send a group of İslamic teachers and government men to the Kazan, there you had a Turkish king that came to the İslam, and in that group you have İbn Fadlan, they go the nort of Kazakstan or Turkistan or South siberia, İ forget, he wrote very marcable thing, as example a very long man a giant,... The greatest line of information is how the Turks lived before İslam"

"He wasn't captured, just passed by to trade and witnessed some great things. The movie, though it is good, is a horrible representation of what happened."

The name of movie that is beinf referred is 13th Warrior

"Arabs knows The word Allah since day one on earth, Allah is an arabic word which means ' THe God", and the God of of gods before the islamic Era Called "Allah" ... it's not something islamic, but islam corrected the image of god, Going from Polytheism to Monotheism"