omg, brothers

Question

1. is it using gds name randomly - lo sisa shem hashem lashav- to say o my god? 2. where is the source that it is prohibited to touch ones brother? why is it prohitbited? can i sing in front of him?

Answer

Answered by Aaron Abadi

1) No 2) It is a gemara that is brought down in Shulchan Aruch. 2B) It is part of a general prohibition of men touching women, and it was only permitted for father/daughter, mother/son, & so on. Not brother/sister. 2C) Yes AA