Skandapurana 6.3.179.16

6.3.179.16

puṣpairanyairyathālābhaṃ yo naraḥ pūjayecchivam .
nairantaryeṇa ṣaṇmāsaṃ yo'rcayedgautameśvaram .
sarvānkāmānavāpnoti mṛtaḥ śivapuraṃ vrajet .. 179.16 ..

and with other flowers as obtained, whichever man worships Śiva; / he who worships Gautameśvara continuously for six months / attains all desires, and, upon death, goes to the city of Śiva.