דבר דבר (Dabair Davar): Addition 1 to 1538: Requests in Davening on Shabbos;
This Melacha Entails Separating, Not Merely Sprinkling. Not Just Solids but Also Liquids. Foods and Non-Foods;
ודבר דבר (Dabair Davar): How Do We Deal With Calculations on Shabbos?;