Shiva Purana
तावतैव परो धर्मो भावने सुकृतो भवेत् ॥ असंपूज्य न भुञ्जीत शिवमाप्राणसंचरात् ॥ ६९ ॥
Even that much is enough for earning virtue. As long as he lives the devotee shall not take meals without worshipping Śiva.
english translation
tAvataiva paro dharmo bhAvane sukRto bhavet ॥ asaMpUjya na bhuJjIta zivamAprANasaMcarAt ॥ 69 ॥
hk transliteration by Sanscript