Which preposition to use with rezai

at Occurrences 1%

"I loyally agreed to this arrangement and made preparations in consequence, but at 7 in the morning on the 23rd of January, the day I expected the hostages, I was awakened by a cannon-shot quickly followed by a second, the ball of which pierced the rezai at the foot of my bed from side to side, and made a great noise.

Which preposition to use with  rezai