Skanda Purana — Prabhasa Khanda, Shloka 103
विधूमे लेलिहाने च कुर्यात्कर्म प्रसिद्धये । अप्रबुद्धे सधूमे च जुहुयाद्यो हुताशने
vidhūme lelihāne ca kuryātkarma prasiddhaye | aprabuddhe sadhūme ca juhuyādyo hutāśane
当火焰无烟，焰舌向上舔升之时，应行其仪轨，以得必然成就；若于昏钝而冒烟之火中投献供物，则违背正法之行。
Skanda (deduced)
Tirtha: Prabhāsa-kṣetra
Type: kshetra
Scene: Close-up of a homa fire: in the ideal case, clean, bright flames rise and ‘lick’ upward with minimal smoke; in contrast, a secondary vignette shows a smoky, dull fire with hesitant offerings—illustrating the prohibition.
FAQs
Outer signs (like the state of Agni) mirror inner order—proper conditions support the fruit of dharma.
The instruction is embedded in Prabhāsakṣetra Māhātmya, linking correct ritual to the sanctity of Prabhāsa.
Prefer a smokeless, vigorously flaming fire for rites; avoid offering into a weak, smoky fire.