Intro
I am slowly collecting more and more newspaper articles which discuss the death of MGA.  I have found this reference from the book “Nooruddin” by Syed Hasanat Ahmad, 2003 edition, online edition.  Again, this Ahmadi author doesn’t give a proper reference.  Nonetheless, see pages 122, 123:

“””Nothing now is left with the Mirzais (a derogatory term used for Ahmadis) after the demise of Hadhrat Mirza Ghulam Ahmadas, the Movement has lost its head, and the person, who has become head, only knows the Holy Qur’an and he will only be reading and lecturing on the Holy Qur’an in the mosque.

At the annual Ahmadiyya conference in December, 1908, Hadhrat Khalifatul Masih Ira delivered a vigorous speech. The editorial of the Curzon Gazette commented upon it thus: “He
could only teach the Holy Qur’an,” Hadhrat Khalifatul Masih Ira said, “Let God help me to teach them the Holy Qur’an so that they can understand it.”””””

Some brief commentary
It seems that Nooruddin was a Quranist, just like Sir Syed and he seems to have never changed his views, even after meeting MGA.