"The same." Those are the people he should also send stones to of course. they are the same person after all. He settles down on the ground, collecting the stones so that he can begin the process. Clearly he has a lot more he has to do before they are told to get back on the train. he has already sent a message to his brother, so now he will have to do the rest.

His uncle, Sizhui and Wei Ying...that is who needs to know where he is so that they do not have to worry.