Valmiki Ramayana Aranya Kanda Sarga 9 Shloka 20
Original Shlokaस तच्छस्त्रमनुप्राप्य न्यासरक्षणतत्परः।।3.9.20।। वने तु विचरत्येव रक्षन्प्रत्ययमात्मनः।
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सः तु that sage, तत् that, शस्त्रम् weapon, अनुप्राप्य having received, आत्मनः his own, प्रत्ययम् trust, रक्षन् while keeping, न्यासरक्षणतत्परः always attentive in protecting that deposit, वने in the forest, विचरत्येव went wandering.
Having received the weapon as a trust, the sage went wandering in the forest, always attentive in safeguarding the weapon.