Valmiki Ramayana 6.81.6
मोहनार्थं तु सर्वेषां बुद्धिं कृत्वा सुदुर्मतिः।हन्तुं सीतां व्यवसितो वानराभिमुखो ययौ॥
mohanārthaṃ tu sarveṣāṃ buddhiṃ kṛtvā sudurmatiḥ |hantuṃ sītāṃ vyavasito vānarābhimukho yayau ||
Our plain-language meaning of this verse is waiting for scholar review.