Ōno states that the Guoqu wushisan Fo ming jing 過去五十三佛名經 is an excerpt text from the Wushisan jingli 五十三佛敬禮 portion of the Guan Yaowang Yaoshang er pusa jing 觀藥王藥上二菩薩經 T1161. Just like the Sanshiwu Fo ming jing 三十五佛名經, the Guoqu wushisan Fo ming jing is preserved in the appendix of the Korean and Song editions of the Ākāśagarbha Contemplation Sūtra 觀虛空藏菩薩經 T409. The Guoqu wushisan Fo ming jing is listed in the section of extant anonymous scriptures of CSZJJ with a note reading: 出藥王藥上觀亦出如來藏經 (T2145 [LV] 22b6). Although this note says that it is also excerpted from the Tathāgatagarbha-sūtra 出如來藏經, the extant T666 does not contain the names of the 53 Buddhas, while the San jie san qian Fo yuanqi 三劫三千佛縁起 (T446, which bears a note saying it too was excerpted from T1161 出觀藥王藥上經 next to the title) does.