Answer
The Hadith simply means, if one follows the Qur’aan, it (the Qur’aan) will bear witness for us on the day of Qiyaamat and if we violate the orders of the Qur’aan, it (the Qur’aan) will oppose us on the day of Qiyaamat.
and Allah Ta’ala Knows Best
Mufti Ebrahim Desai