Valmiki Ramayana Yuddha Kanda Sarga 48 Shloka 20

तपस्विनीम् one who observes austerities, श्वश्रूम् motherinlaw, यथा like that, तथा so also, रामम् Rama, नशोचामि not grieve, महारथम् great warrior, लक्ष्मणंच even Lakshmana, आत्मानम् my own self, नजननींचापि even my mother, न not.

"When I think of Rama or even great warrior Lakshmana, or my mother or myself I am not so sad as when I think of my motherinlaw who is an observer of austerity."