Valmiki Ramayana Yuddha Kanda Sarga 10 Shloka 16
Original Shlokaअग्निष्ठेष्वग्निशलासुतथाब्रह्मस्थालीषुच । सरीसृपाणिदृश्यन्तेहन्येषुचपिपीलिकाः ।।6.10.16।।
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अग्निष्ठेषु: in cooking fire, अग्निशालासु: in places of fire sacrifice, तथा: so also, ब्रह्मस्थलीषुच: at places where offerings are made into fire, सरीसृपाणि: serpents, दृश्यन्ते: are seen, हव्येषु: in the Havis, पिपीलिकाः ants are seen.
"In the cooking fire, in places of fire sacrifice, so also at places where offerings are made into fire, serpents are seen. Ants are seen in the Havis."