Wang Wei probably has not written a poem named after "Sword", but he has written poems related to swords. The poem you are talking about should be the one below. I present it to you, please refer to it!
Introduction to the work
The author of "Send Judge Zhang to Hexi" is Wang Wei, and it was selected as the 20th poem in Volume 126 of "The Complete Poems of the Tang Dynasty".
Original text
Send Judge Zhang to Hexi
Author: Wang Wei of the Tang Dynasty
A bicycle once went out of the fortress, and he dared to serve the country and invite honors.
Seeing the conquest of prisoners one by one, I think of the champion of Huo now.
The sand is flat with white clouds, and the yellow clouds are rolled into it.
Lean on the sword generously and send it to you with a loud song.
Notes
①Hexi: That is Hexi Jiedu, where the government was located in Liangzhou (now Wuwei, Gansu).
②See: Same as "present". Chase: follow. Zhang Zhenglu: "Three Kingdoms·Shu Zhi·Zhang Fei Biography": "The First Lord established the south of the Yangtze River and appointed Fei as the governor of Yidu and the general of Zhenglu. ... Fei was majestic and powerful, inferior to Guan Yu, and Wei counselor Cheng Yu and others called him Fei. The enemy of ten thousand people."
③Huo Guanjun: Huo Qubing, the famous general of the Western Han Dynasty. Huo was awarded the title of Champion Marquis due to his achievements in attacking the Xiongnu. See the "Historical Records: Biography of General Wei Qiaoqi".
④Leaning on the sword: leaning on the sword.