Keeping this short...
If Obito could see what Kakashi saw when Kakashi killed Rin just by being few hundred meters away from Kakashi...
Then Madara should be able to use his Rinnegan if the eye is nearby. (the eye was with white Zetsu 1 meter beneath Madara underground...)
I consider Madara lucky cuz Zetsu made it just in time
P.S. Madara and his eye might've been connected by either senjutsu or chakra!
If Obito could see what Kakashi saw when Kakashi killed Rin just by being few hundred meters away from Kakashi...
Then Madara should be able to use his Rinnegan if the eye is nearby. (the eye was with white Zetsu 1 meter beneath Madara underground...)
I consider Madara lucky cuz Zetsu made it just in time
P.S. Madara and his eye might've been connected by either senjutsu or chakra!