American Football Rules IFAF Approved Ruling 8-2-1:X

X. Ball carrier A33 is running toward the Team B goal line. He drops the ball just inside the one- yard line and, thinking he has scored a touchdown, circles through the end zone and runs to his team area. There is no touchdown signal by any official. The fumbled ball hits the ground just outside or just inside the goal line, rolls along the ground in the end zone, and is declared dead there when it comes to rest and no player attempts to recover it.
RULING: A’s ball just inside the one-yard line. (Rule 7-2-5) [Cited by 8-2-1-c]