Valmiki Ramayana Ayodhya Kanda Sarga 77 Shloka 22
Original Shlokaत्रयोदशोऽयं दिवसः पितुर्वृत्तस्य ते विभो।।2.77.22।। सावशेषास्थिनिचये किमिह त्वं विलम्भसे।
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विभो O lord, अयम् it is, वृत्तस्य of the dead, ते पितुः your father's, त्रयोदशः the thirteenth, दिवसः day, सावशेषास्थिनिचये when the heap of bones and ashes still remain, त्वम् you, इह here, किम् why, विलम्बसे are you delaying?
O lord, this is the thirteenth day since the death of your father. The heap of bones and ashes still remain on the pyre. Why this delay on your part?