A housewife got down from the auto. She remembered to take her mobile with her. Guess what she forgo

A housewife got down from the auto. She remembered to take her mobile with her. Guess what she forgot and left behind in the auto?
Phone එක කනේ ගහන් සිඟිති දියණියව අමතක කර වාහනයෙන් එලියට ආපු අම්මා

forgo