Valmiki Ramayana Ayodhya Kanda Sarga 29 Shloka 22

एवम् in this way, सा she, गमनं प्रति about her departure, बहुविधम् in several ways, तम् him, याचते requested, महाबाहुः mightyarmed Rama, ताम् her, विजनम् desolate, वनम् forest, नेतुम् to take, नानुमेने did not consent.

Despite Sita's pleadings with him in various ways the mightyarmed Rama would not consent to take her to the desolate forest.