Astanga Hrudaya
दार्वीमधुकतोयेन मृजां च परिशीलयेत्। ओजोऽष्टमे सञ्चरति मातापुत्रौ मुहुः क्रमात्॥६२॥
Then after given a bath in water processed with Darvi (Berberis aristata) and Madhuka (Madhuca longifolia) Reason for instability of fetus in the eighth month of pregnancy: During the eight month, ojas travels between the mother and the child alternatively;
english translation
dArvImadhukatoyena mRjAM ca parizIlayet। ojo'STame saJcarati mAtAputrau muhuH kramAt॥62॥
hk transliteration by Sanscript