7.3.78
पाघ्राध्मास्थाम्नादाण्दृश्यर्त्तिसर्त्तिशदसदां पिबजिघ्रधमतिष्ठमनयच्छपश्यर्च्छधौशीयसीदाः
Operational rule vidhi
Before a Present-character (शित्) the following substitutions take place - 1. पिब् for पा 2. जिघ्र for घ्रा 3. धम् for ध्मा 4. तिष्ठ् for स्था 5. मन् for म्ना 6. यछ् for दा (दाण्) 7. पश्य for दृश् 8. ऋच्छ् for ऋ 9. धौ for सृ 10. शीय् for शद् and 11. सीद् for सद्.
Word by word (padaccheda)
Target पाघ्राध्मास्थाम्नादाण्दृश्यर्त्तिसर्त्तिशदसदाम् ṣaṣṭhī · bahuvacanaSubstitute / term पिबजिघ्रधमतिष्ठमनयच्छपश्यर्च्छधौशीयसीदाः prathamā · bahuvacana
- Target Ṣaṣṭhī (6th case): names what gets replaced, "in place of X" (1.1.49 षष्ठी स्थानेयोगा).
- Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
Dotted words are technical terms. Hover or tap one to see its card.
Full reading
पाघ्राध्मास्थाम्नादाण्दृश्यर्त्तिसर्त्तिशदसदाम् पिबजिघ्रधमतिष्ठमनयच्छपश्यर्च्छधौशीयसीदाः
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
पाघ्राध्मास्थाम्नादाण्दृश्यर्त्तिसर्त्तिशदसदाम् → पिबजिघ्रधमतिष्ठमनयच्छपश्यर्च्छधौशीयसीदाः
Replace pāghrādhmāsthāmnādāṇdṛśyarttisarttiśadasadām with pibajighradhamatiṣṭhamanayacchapaśyarcchadhauśīyasīdāḥ. Inherited words (anuvṛtti) may add further conditions.
Commentary
Before a Present-character (शित्) the following substitutions take place - 1. पिब् for पा 2. जिघ्र for घ्रा 3. धम् for ध्मा 4. तिष्ठ् for स्था 5. मन् for म्ना 6. यछ् for दा (दाण्) 7. पश्य for दृश् 8. ऋच्छ् for ऋ 9. धौ for सृ 10. शीय् for शद् and 11. सीद् for सद्।
As पिबति, जिघ्रति, धमति, तिष्ठति, मनति, यच्छति, पश्यति, ऋच्छति, धावति, शीयते and सीदति ॥ पिब् + शप् + तिप् required Guna of the इ of पि by 7.3.86, it however does not take place on the maxim: अङ्गवृत्ते पुनर्वृत्तावविधिः "when an operation which is taught in the angadhikara, has taken place, and another operation of the angadhikara is subsequently applicable, this latter operation is not allowed to take place". Or the substitute पिब is one which ends with अ, and is acutely accented on the first. It must be acutely accented on the first; otherwise by 6.1.162, the acute will be on the last पिब꣡ ॥ Then when there is ekadesa with शप्, the acute will be on the middle in पिब꣡ति, which is not desired. धौ is substituted for सृ when the sense is 'to run, move quickly'; in any other sense, we have प्रसरति, अनुसरति ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.