According to Hanafi jurisprudence, what is the status of a marriage contract concluded without the presence of witnesses?

According to Hanafi jurisprudence, what is the status of a marriage contract concluded without the presence of witnesses?

فقہ حنفی کے مطابق گواہوں کی موجودگی کے بغیر عقد نکاح کی کیا حیثیت ہے؟
Explanation

In Hanafi jurisprudence, a marriage contract concluded without the presence of witnesses is considered valid.

The Hanafi school of thought holds that the presence of witnesses is not a essential condition for the validity of a marriage contract.