Linked from
The 5 pages that link to Sai, each with the reason it gives.
HajjRelated: This rite follows the circumambulation of the Kaaba.
UmrahBroader topic: It follows tawaf and recalls Hajar’s search for water.
NunchakuRelated: Sai provide a useful comparison among weapons associated with Okinawan kobudō.
TonfaRelated: Like the tonfa, the sai is an Okinawan weapon commonly trained in pairs.