What certificate do you need to perform Quality Audits ?

A or B is enough to perform internal quality audits.

But a Lead Assessor certificate is more required and adapted for performing

external audits within tierce cabinet of quality certification. 

Being a QMS internal auditor is enough, being a QMS lead assessor is a plus

Certified Quality Auditor from ASQ is the right certification for the question.

However an IRCA Certified Course, by bsi,  for QMS lead auditor/ QMS auditor  (called  BSI Certified Auditor) is also there.

You are an expert, I am endorsing your answer Mr. LABIB KOOLI

i believe both of them , cause you need to know how to plan an audit , how to audit a process , and how to report an audit

If you perform only internal audits B should be enough. But for an external auditor you must have A as well

A . QMS Lead Assessor 

B. QMS Internal Auditor  

Both Certified Person is preferable 

I have B. QMS Internal Auditor

Option C is the preferred one

If you have additional training you can audit other companies 

QMS Internal Audit is more than enough to conduct and perform Quality Audits, being a Lead Assessor is an advantageous capability of an Auditor to identify and prepare the customer or supplier prior to conducting an AUDIT.

I will give vote for C ...............................

QMS Internal Audit is more than enough.