(What aileth you) O people of Mecca (that ye believe not in Allah) that you deny Allah's divine Oneness, (when the messenger) Muhammad (pbuh) (calls you to believe in your Lord) to profess your Lord's divine Oneness, (and He hath already made a covenant with you) and He has already taken your declaration of Allah's divine Oneness, (if ye are believers) on the Day of Covenant?