Valmiki Ramayana Ayodhya Kanda Sarga 20 Shloka 32
Original Shlokaसा निकृत्तेव सालस्य यष्टिः परशुना वने। पपात सहसा देवी देवतेव दिवश्च्युता।।2.20.32।।
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सा देवी that Kausalya, परशुना with an axe, वने in the forest, निकृत्ता severed, सालस्य sal tree's, यष्टिः इव like a stick (branch), दिवः from heaven, च्युता fallen down, देवतेव like a celestial, सहसा suddenly, पपात fell down.
All on a sidden Kausalya fell down on the ground like the branch of a sal tree in the forest severed by an axe, like a goddess dropped from heaven.