The Spiritual Rāmāyaṇa 6.6.20

6.6.20

jyāśabdamakarottīvraṃ vajraniṣpeṣaniṣṭhuram |
rāmo gambhīrayā vācā rākṣasendramuvāca ha ||

20. He then made his bow twang like the sound of thunder and in a powerful voice said to the king of the Rákshasas. 21 "O vile Rákshasa, tarry, where shalt thou go to-day from me having done this wrong to me, the seer of all with equal eye.