Is the view of both the people of innovation (Ahl al-Bid'ah) and the people of the Sunnah (Ahl al-Sunnah) regarding their exclusive right to Paradise correct or incorrect?

The claim of deserving Paradise is of no benefit to its proponents unless it aligns with the judgment of Allah Almighty. Whoever makes a claim must provide proof of its validity. The clear proof is: "{Whoever submits his face to Allah while he is a doer of good}." This is the criterion by which the followers of every doctrine or methodology are judged to be destined for Paradise or Hell, and it is by following the path of the Messenger of Allah (peace be upon him) with sincerity to Allah Almighty.