Valmiki Ramayana Bala Kanda Sarga 1 Shloka 82
Original Shlokaतामुवाच ततो राम: परुषं जनसंसदि । अमृष्यमाणा सा सीता विवेश ज्वलनं सती ।।1.1.82।।
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तत: for that reason, राम: Rama, जनसंसदि in the assembly of men, ताम् about Sita, परुषम् harsh words, उवाच spoke, सती chaste, सा सीता Sita, अमृष्यमाणा incapable of enduring those words, ज्वलनं विवेश entered flaming fire.
Rama spoke harsh words about Sita in the assembly. Sita, incapable of enduring such words, entered fire.