Gemara:

Berachot,  Megillah 

Halacha:

Kriyat HaTorah 

References: Berachot: 21b ,  Berachot: 47b ,  Megilla: 23b ,  Pesachim: 46a ,  Rambam: Hilchos Tefilla chapter 8 halacha 4  

Description

This shiur discusses different opinions among the Rishonim regarding what is davar shebikdusha with very interesting applications. It also addresses the question whether there is an obligation to daven with a minayn or not.