Valmiki Ramayana Bala Kanda Sarga 16 Shloka 26
Original Shlokaसोऽन्त:पुरं प्रविश्यैव कौसल्यामिदमब्रवीत्। पायसं प्रतिगृह्णीष्व पुत्रीयं त्विदमात्मन:।।1.16.26।।
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स: he, अन्त:पुरम् inner apartment, प्रविश्यैव after entering, कौसल्याम् addressing queen Kausalya, इदम् these words, अब्रवीत् spoke, आत्मन: for you, पुत्रीयम् bestowing sons, इदम् this, पायसम् Payasam, प्रतिगृह्णीष्व receive it.
He entered the inner apartment and addressing queen Kausalya said, "Receive this payasam which has the power to give you sons".