金剛杵（梵文，）或金剛（），音譯縛日囉、伐折囉、跋折囉、耽囉、伐闍囉。又譯做寶杵、降魔杵、杵等。原本係古代印度神話中因陀羅嘅武器，象徵閃電，或指稱鑽石。由於質地堅固，可以擊破各種物質，所以佛教常用嚟比喻同形象地命名，金剛杵就係攞呢個意思。
Vajra (Sanskrit) or Vajra ( ), transliteration binds the sun, felled, broken, tarned, and naughty. It is also translated as Mrs. Bao, Demon Suppression, Oh, etc. Originally a weapon of Indra in ancient India mythology, it symbolized lightning, or referring to diamonds. Because of its strong texture and ability to break through various substances, Buddhism often uses metaphors and figurative names, and Mrs. Vajra takes this meaning.