ANSWER:
He must stand up immediately, perform ruku, stand up for ruku, go to offer his two prostrations and then offer the tashahud to conclude his prayer, offer Salam then offer 2 prostrations of forgetfulness and then offer another salam.
ANSWER:
He must stand up immediately, perform ruku, stand up for ruku, go to offer his two prostrations and then offer the tashahud to conclude his prayer, offer Salam then offer 2 prostrations of forgetfulness and then offer another salam.