Valmiki Ramayana Bala Kanda Sarga 73 Shloka 29
Original Shlokaसाधु साध्विति देवाना मृषीणां वदतां तदा । देवदुन्दुभिर्निर्घोष: पुष्पवर्षो महानभूत्।।1.73.29।।
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तदा then, साधु साधु इति "Well, Well" saying so, वदताम् exclaiming, ऋषीणाम् sages, देवानाम् devatas, देवदुन्दुभिनिर्घोष: sounded the celestial kettledrums, महान् great, पुष्पवर्ष: rain of flowers, अभूत् fell.
Then gods and sages exclaimed: 'well, well'. Celestial kettledrums were sounded and there was a steady rain of flowers.