TIPITAKA Volume 17 : PALI ROMAN Sutta Pitaka Vol 9 : Sutta. Saṃ. Kha.

[550] Sāvatthī . ekamantaṃ nisinno kho so bhikkhu bhagavantaṃ etadavoca ko nu kho bhante hetu ko paccayo yenekadā uṇhaṃ hotīti . santi bhikkhu uṇhavalāhakā nāma devā tesaṃ yadā evaṃ hoti yannūna mayaṃ sakāya ratiyā rameyyāmāti tesantaṃ cetopaṇidhimanvāya uṇhaṃ hoti . ayaṃ kho bhikkhu hetu ayaṃ paccayo yenekadā uṇhaṃ hotīti.