Less than Half of Tallith Torn

About this learning series

Parashath Noah, Laws of Ziziyoth, Page 15-16: 

8 (continued). If a tallith becomes torn across less than half its width or breadth, it may be sewn up again, without having the ziziyoth removed beforehand and tied again afterwards.

This learning should be in memory of Maran, HaRav HaGaon Ovadia Yosef, ztz'l.