Shiva Purana
ज्ञानं तु दुष्करं लोके भजनं सुकरं मतम् ॥ तस्माच्छिवं च भजत मुक्त्यर्थमपि सत्तमाः ॥ १७ ॥
The knowledge is difficult to attain but worship can easily be performed. Hence, O excellent sages, worship Śiva for the attainment of salvation too.
english translation
jJAnaM tu duSkaraM loke bhajanaM sukaraM matam ॥ tasmAcchivaM ca bhajata muktyarthamapi sattamAH ॥ 17 ॥
hk transliteration by Sanscript