Chapter 18
Specific Laws Relating to the Transfer of Objects from One Place to Another on Shabbath, Where There Is No Eiruv
Specific laws relating to the transfer of objects from one place to another on Yom Tov are dealt with in Chapter 19.
ARTICLES WHICH ARE WORN
40.a. 1) A button which has become so loose that one does not fasten it, for fear that it will come off, is not considered to be part of the garment.
2) As a result, it is better not to wear the garment on Shabbath when one intends to go out into reshuth ha-rabbim in a place where there is no eiruv.
40.b. From Chapter 15, paragraph 68a it is seen that on Shabbath and Yom Tov it is forbidden to detach a loose button, or to extract threads left after a button has fallen off.
