Valmiki Ramayana Ayodhya Kanda Sarga 42 Shloka 29
Original Shlokaततस्तस्य प्रविष्टस्य कौशल्याया निवेशनम्। अधिरुह्यापि शयनं बभूव लुलितं मनः।।2.42.29।।
1 source checked for this shloka
ततः then, कौशल्यायाः Kausalya's, निवेशनम् residence, प्रविष्टस्य having entered, तस्य his, मनः mind, शयनम् couch, अधिरुह्यापि though having climbed, लुलितम् बभूव was tossed about.
His mind tossed restlessly although he entered Kausalya's palace and climbed into the couch.