Valmiki Ramayana 6.118.13

यत् कर्तव्यं मनुष्येण धर्षणां परिमार्जता ।तत् कृतं सकलं सीते शत्रुहस्तादमर्षणात्॥

yat kartavyaṃ manuṣyeṇa dharṣaṇāṃ parimārjatā |tat kṛtaṃ sakalaṃ sīte śatruhastādamarṣaṇāt ||

Our plain-language meaning of this verse is waiting for scholar review.