《徐霞客游记·游太和山日记》
我不相信，索求得更起劲，道士取出几枚送我，都已变黑腐坏，而且叮嘱不要让人知道。
余不信，求之益力，出数枚畀ì给予余，皆已黝烂，且订约定无令人知。
I did not believe it and requested it even more earnestly. The Taoist priest took out a few and gave them to me. They had all turned black and rotten, and he repeatedly instructed me not to let anyone know about it.