No need for a lengthy introduction to this post. The arguments, unsurprisingly often tampered with, are littered across the internet. ”Ahmadis, Qadianis, Mirzais” say this, that and the other about people who deny the claims of Hadrat Mirza Ghulam Ahmad (‘alayhi al-salam). Like so many issues that the architects of misinformation play on, this is almost always transformed by them into a complicated and grave conspiracy. The reality, however, is quite straight forward. In fact, it is so simple that I am going to break it down into a simple A, B, C:
A. Do you believe that the Imam al-Mahdi will one day appear as was foretold by the Holy Prophet (sall Allahu ‘alayhi wa sallam)?
B. On the basis of the Prophetic narrations, particularly the instruction that anyone who comes to know of the Imam al-Mahdi must offer his/her Bay’ah to him, do you believe that the Imam al-Mahdi is sent by Almighty Allah and should therefore be followed?
C. If yes to the above, what would be the status of one who denies the Imam al-Mahdi and turns his/her back on him?
= What Ahmadis have always held true to.
The fact that someone does or does not accept that Hadrat Mirza Ghulam Ahmad (‘alayhi al-salam) was the Imam al-Mahdi in no way affects the above principle. Non-Ahmadi Muslims are free to believe that Hadrat Mirza Ghulam Ahmad (‘alayhi al-salam) was not the Imam al-Mahdi, but they cannot, without treading upon hypocrisy, vilify Ahmadis for adhering to the stipulated and implied conditions that come with the acceptance of the Imam al-Mahdi.
Please see the following answer which is drenched with conviction and true adherence to one’s belief: