Parashas Beshalach · Passuk 13:18
Chabad.org — English translation + Rashi
Torah Temimah points to Yerushalmi Shabbos 6:7 (verified).
Sefaria — Exodus 13:18
Sefaria — Yerushalmi Shabbos 6:7
English: The phrase חמושים is interpreted as indicating that the Israelites were armed with five kinds of weapons.
On the daf / in context: See the cited source for the full section.
Derash on the verse.