In the Reduplicated Present form (ślu) of the three roots 1. bhṛ 2. mā (māṅ) and 3. hā (ohāṅ), i is substituted for the vowel of the reduplicate. ,
As बिभर्त्ति, मिमीते, 6.4.113 जिहीते ॥ The word 'three' is understood here, therefore not in ओहाक्-जहाति ॥ The rule applies in the Reduplicated Present system (श्लु) only: therefore not in बभार ॥,