On Zan’gong’s House was originally a poem written by Du Fu for Zan’gong

the abbot of Dayun Temple

when he took refuge in Dayun Temple of Chang 'an during the An-Shi Rebellion. However

it was included in the section of Tang Poetry of Local Records·Lingyan Annals by the compilers of

Lingyan Annals

during Kangxi’s Reign in the Qing Dynasty. According to the clear development of relationship between Du Fu and Zan’gong

their connection took place in Chang 'an and Qin Zhou

not Lingyan Temple in Shandong. Though Du Fu did visit Shandong twice before the An-Shi Rebellion

there was no record of his visiting Lingyan Temple

nor did he leave behind any poems about Lingyan Temple. Actually he didn’t even write any poems about Lingyan in his life. Therefore

the collection of Du Fu's On Zan’gong’s House by

Lingyan Annals

during Kangxi's Reign in the Qing Dynasty is a mistake.