Valmiki Ramayana Ayodhya Kanda Sarga 24 Shloka 26
Original Shlokaभर्तु श्शुश्रूषया नारी लभते स्वर्गमुत्तमम्। अपि या निर्नमस्कारा निवृत्ता देवपूजनात्।।2.24.26।।
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या who, निर्नमस्कारा pays no respect, देवपूजनात् from worshipping gods, निवृत्ता has abstained, नारी अपि woman also, भर्तुः husband's, शुश्रूषया with service, उत्तमम् highest, स्वर्गम् heaven, लभते will attain.
A woman who serves her husband will attain the highest heaven even if she pays no homage to gods and abstains from worshipping them.