[If] one finds fruit on the road and picks it up to eat, and then decides to place [it] in a sheltered spot [instead], he may not place [it] in a sheltered spot until he tithes [it]. But if he initially picked it up so that it not be destroyed, he is exempt [from tithing it]. Whatever a person is not permitted to sell [in a state of] demai, he may not send to his friend [in a state of] demai. R’ Yose permits [sending] definitely [untithed produce], provided that he informs him.