Māṇḍūkī Śikṣā 102

102

kariṇīṃ rahayorvidyātkurviṇīṃ lahakārayoḥ
hariṇīṃ raśayorvidyāddhāritāṃ laśakārayoḥ

One should know [the vowel glide] *kariṇī* between *r* and *h*, and *kurviṇī* between *l* and *h*; / one should know *hariṇī* between *r* and *ś*, and *hāritā* between *l* and *ś*.