Dadong wushang jiuji tianxian chuanjie keyi 大洞無上九極天仙傳戒科儀, a Daoist salvation ritual manuscript, is still in use by the Zhengyi 正一 Daoists in Suzhou 蘇州 today. This article argues for a close relationship between this ritual text and spirit-writing altars, that is, the Yuguang 玉光 lineage in Suzhou and the Tianxian 天仙 lineage in Beijing 北京, during the Qing dynasty. Originating from texts of the Yuguang lineage, Biyu zhengong dajie 碧玉真宮大戒 was modified into Santan yuanman tianxian dajie lueshuo 三壇圓滿天仙大戒略說 by the literati from the Tianxian lineage. With the spread of the texts of the Tianxian lineage to the Jiangnan area, Dadong wushang jiuji tianxian chuanjie keyi developed into a ritual of transmitting precepts to dead souls, inspired at the same time by the traditional ordination ritual of the local Zhengyi Daoists.