A person should not run or take long steps, but walks are permitted, and
a person may run to fulfill a Commandment or to do something enjoyable
(301:1-3). It is forbidden to swim in a non-enclosed pool (339:2), or to
float objects on the water (339:6), but it is permitted to enter a ship
that is grounded or tied up (339:7).
It is forbidden to play a musical instrument or to make non-musical
sounds with an instrument (see 338:1); on dancing and clapping see
338:2,4 and 339:3. It is permitted to set a clock before the Sabbath
to strike the hours (338:7). A person should not engage excessively in
idle talk, but enjoyable conversation is permitted; see 307:1.
Commercial public announcements are forbidden; see 306:12-13.
It is permitted to read a letter that has just arrived if its contents
might be urgent (307:14), but a person should not look at other secular
documents (see 307:12-13,15-16); on reading books see 307:17. Children
should not be taught new things, but reviewing is permitted (Yoreh
De'ah 245:14). Mental calculations about things that have not yet been
completed are forbidden (307:6) unless they are for religious purposes
(306:6). It is permitted to specify numbers of objects that are to be
acquired, but not to measure (see 324:2) or to specify quantities or
prices (see 306:3;323:1-4), except for religious purposes (see 306:6-7).
A person should not be paid for doing things on the Sabbath, but may be
paid for doing things in a period that includes the Sabbath (306:4-5).
It is forbidden to prepare to go outside the Sabbath boundary immediately
after the Sabbath except for religious purposes or to prevent loss
(306:1,3), but it is permitted to prepare to do other things immediately
after the Sabbath (307:9). It is forbidden to discuss plans for doing
things after the Sabbath that are forbidden on the Sabbath (307:1).
It is forbidden to make an agreement to do work or business after the
Sabbath (see 307:2), but it is permitted to ask someone to do things
after the Sabbath that could also be done on the Sabbath (see 307:7-8,10).
A person must not inspect his property (306:1), and should not even think
about his affairs (306:8). It is permitted to borrow something for a
short period, and to leave a security deposit, but longer-term loans
should not be made or repaid (307:11). It is forbidden to play games of
chance for profit (see 338:5), and things should not be divided by casting
lots (see 322:6).
It is forbidden to arrest, judge, or punish, to marry or divorce (except
on a deathbed), to sanctify or redeem, to inspect a first-born for
blemishes (see Yoreh De'ah 312:3), or to set aside offerings (339:4-5).
It is permitted to release a person from a vow that interferes with
observance of the Sabbath, and for a husband to annul a wife's vow
(341:1-2; Yoreh De'ah 234:24). It is permitted to annul community bans
(341:3), or to impose bans involving matters related to the Sabbath
(306:12). On the penance for violating the Sabbath see 334:26.
Shulchan Aruch, Copyright (c) 2000 Project