MISHNA BERURA YOMI MISHNA BERURA DIRSHU CHELEK 1 DEC 20 2010

S"A SIMAN 13 SIF 2 MISHNA BERURA SIF KATAN 7
ON SHABBOS YOU HAVE TO EAMINE YOUR TZITZIS B/4 PUTTING THEM ON

MISHNA BERURA DIRSHU CHELRK 1
Q:WHY DO WE NOT RELY ON THE CHAZAKA THAT IT IS KOSHER

A:RAV MOSHE IN THE IGROS MOSHE EXPLAINS THE M"B BRINGS ACHRONIM WHO SAY THE CHAZAKA IS A CHAZAKA GARUA(BAD) B/C THE STRINGS WILL SEPARATE AND THEREFORE YOU NEED TO CHECK IT(FOR MORE SEE NOTE 9)