This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
The Forty Rules of Love became one of the best known literary treatments of Rumi in the English speaking world, and its numbers are real: more than 750,000 copies sold across Turkey and France alone, a shortlisting for the 2012 International IMPAC Dublin Literary Award, and a place on the BBC's 2019 list of the 100 most influential novels. In Turkey, where Elif Shafak published a Turkish version titled Ask in 2010, the book became a genuine bestseller and introduced a popular audience to a fictionalized Rumi and Shams outside any classroom or seminary.
Scholarly reception has been more careful than the sales figures suggest. In a 2020 study in the journal Scripta Instituti Donneriani Aboensis, the literary scholar Billy Gray examined the novel's account of the relationship between Rumi and Shams and argued that it reflects a specific modern current sometimes labelled Western Sufism, one built on universalist and perennialist assumptions that treat mystical experience as essentially the same across religious traditions. Gray's concern is not that the novel is dishonest but that, in shaping Rumi's teaching for an international and largely American readership, it simplifies and pulls the material away from its own historical and doctrinal context. He connects this to a broader pattern the scholar Amira El-Zein has called the Rumi phenomenon, the way Rumi's poetry circulates widely in the West with much of its specifically Islamic and Sufi framework quietly set aside.