listen - asimov wrote a lot of stuff, and there's little indication he had any interest in islam. he wrote a lot about roman history, a lot about european history...
he was a liberal atheist jew living in boston in the mid-20th century. if you have to make a choice between calvinism and islam as an influence on his writing, the former should be the obvious choice.
but, i mean - you can imagine otherwise, if you insist. it doesn't really matter if you think he's imagining crazy calvinists or crazy muslims - it's crazy religious people, one way or the other.
but, i mean, this ought not be a serious debate in terms of what existed in his mind - it's pretty clear that the topic in asimov's mind, as he was writing, was never islam and always calvinism.