Not sure if this was the book, but I've seen something similar.

Lol, found a bit more info:

http://www.mphonline.com/books/nsearchdeta...e=9789675370960
Harga : RM 24.00*

Koleksi Penulis:
Wong Fei Hung: Legenda Kung Fu China
Shamsiah Fakeh: Srikandi Melayu yang Dilupakan
Darah Yahudi: Muslihat Yahudi Menguasai Dunia
Zainab Al-Ghazali: Srikandi Islam Mesir
Maryam Jameelah: Tokoh Wanita Islam Berbangsa Yahudi
Sayidatina Asma' Binti Abu Bakar - Dhatun Nitaqain
Srikandi Perisai Nabi - Nusaibah Binti Ka'Ab
Badi'Uzzaman Said Nursi - Mujaddid Islam Turki

^ 🔝

Not sure its the same
I don't think the blurb in the first post is this book, but if you read the book's synopsis carefully:

Watak dan peribadi Wong Fei Hung serta zaman kehidupannya mengundang polemik yang mengatakan beliau seorang Muslim.

Maybe the book was referring to the article in the first post.

Also, that

Polemik ini masih tiada kesudahan lantaran sikap pihak tertentu yang mungkin mengaburkan jati diri Wong Fei Hung demi menjaga imej kekuasaan mereka.

Lel, suspecting those who doubted "Wong Fei Hung as a Muslim" as selfish.