Valmiki Ramayana Bala Kanda Sarga 14 Shloka 39
Original Shlokaउक्थ्यं द्वितीयं संख्यातमतिरात्रं तथोत्तरम्। कारितास्तत्र बहवो विहिताश्शास्त्रदर्शनात्।।1.14.39।।
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द्वितीयम् on the second day, उक्थ्यम् Ukthya, तथा and, उत्तरम् on the following day, अतिरात्रम् Atiraatra, सङ्ख्यातम् is declared, तत्र In that sacrifice, शास्त्रदर्शनात् according to scriptural knowledge, विहिता: imposed, बहव: many, कारिता: were performed.
On the second day Ukthya and on the third day Atiraatra were performed. Many sacrifices fixed according to the scriptures were also performed.