The phrase "a certificate stating" is correct and usable in written English.
It can be used when referring to a document that provides specific information or confirmation about a particular matter.
Example: "Please provide a certificate stating your completion of the training program."
Alternatives: "a document indicating" or "a statement confirming".
So they need a piece of paper -- a college diploma or a certificate stating their skills.
Or, if it decides that you're entitled to some help, provides a certificate stating the maximum amount you'll have to pay for each specific health care.
Although six doctors at Rawalpindi General Hospital signed a certificate stating the for mer prime minister had died as a result of an "open head injury with depressed skull fracture leading to cardiopulmonary arrest", no full post-mortem examination was performed.
Supervisors who complete the course get a certificate stating its contents.
Upon its initial release, the film received a certificate stating that it was "Approved" (certificate #19564) under the simple pass/fail system of the Production Code in use at that time.
Clients of substitution therapy services were required to carry a certificate stating that their methadone had been supplied legally; however, often people did not have this documentation.
In his view a straightforward purchase, with a recent certificate stating the property has no debts, does not warrant the hiring of a lawyer.
On another wall was a framed certificate stating that George Henry Hunter was a life member of St. John's Lodge No. 29 of the Most Worshipful Prince Hall Grand Lodge of Free and Accepted Masons.
Trainees who were identified as potential trainers received a special certificate stating their potential of becoming a trainer for health centre level staff.
The only document given to his family was a death certificate stating he had died from heart failure.
They include a complaint that Yar Mohammad Karzai filed with the Dand district police in Kandahar Province naming Hashmat Karzai as Waheed's assailant, the boy's hospital records and a death certificate stating that he died of gunshot wounds.
