Valmiki Ramayana Ayodhya Kanda Sarga 118 Shloka 10
Original Shlokaसावित्री पतिशुश्रूषां कृत्वा स्वर्गे महीयते। तथावृत्तिश्च याता त्वं पतिशुश्रूषया दिवम्।।2.118.10।।
1 source checked for this shloka
पतिशुश्रूषाम् service to her husband, कृत्वा having rendered, सावित्री Savitri, स्वर्गे in heaven, महीयते is honoured, तथावृत्ति: having followed the same path, त्वं च you also, पतिशुश्रूषया through serving your husband, दिवम् to heaven, याता shall go.
Having served her husband (faithfully), Savitri is honoured in heaven. You also, by following the same path of serving your husband, shall reach the heaven.