Dhp 51

yathā'pi ruciraṃ pupphaṃ, vaṇṇavantaṃ agandhakaṃ, evaṃ subhāsitā vācā, aphalā hoti akubbato.

MN 13

tassa ce, bhikkhave, kulaputtassa evaṃ uṭṭhahato ghaṭato vāyamato te bhogā na-abhinipphajjanti. so socati kilamati paridevati urattāḷiṃ kandati, sammohaṃ āpajjati, moghaṃ vata me uṭṭhānaṃ, aphalo vata me vāyāmo'ti