Why is the Word Shel in Parentheses?

From Halachic Highlights by R Ephraim Glatt, Esq..

• Published: 2020-12-10T16:03:36.552Z
• Duration: 0:06:26
• Audio: https://content.jwplatform.com/videos/xhGO93pN
• Page: http://outorah.org/p/79819
• TorahApp: https://torahapp.org/share/p/OU_4091?e=http%3A%2F%2Foutorah.org%2Fp%2F79819