Aoa. If some one read Sigahs with a girl as prescribed in Tohfatul Awam in isolation i.e noboday was the witness except boy and girl due to some constraints. They perform ejaab o qabool and settle the mahar. Is this nikkah valid. They are not in any physical contact as they not sure about the validity of Nikkah. Please advice.
Nikah has conditions that must have been fulfilled for the Holy act to be Valid. Kindly Refer to the link below: