Valmiki Ramayana Ayodhya Kanda Sarga 21 Shloka 20
Original Shlokaभ्रातुस्ते वदतः पुत्र लक्ष्मणस्य श्रुतं त्वया। यदत्रानन्तरं कार्यं कुरुष्व यदि रोचते।।2.21.20।।
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पुत्र O son, ते your, भ्रातुः brother's, लक्ष्मणस्य of Lakshmana, वदतः saying, त्वया by you, श्रुतम् has been heard, रोचते यदि if it pleases (you), अत्र in this matter, अनन्तरम् later, यत् what, कार्यम् is to be done, कुरूष्व you may do it.
O my son you have heard what your brother Lakshmana said and if it pleases you, do later what is to be done.