5.3.15
सर्वैकान्यकिंयत्तदः काले दा
Operational rule vidhi
After 1. सर्व 'all' 2. एक 'one' 3. अन्य 'other' 4. किम् 'what' 5 यद् 'which' and 6. तद् 'that' when time is denoted comes the affix दा , the words being in the Locative -7th case.
Word by word (padaccheda)
Left context सर्व- एक- अन्य- किम्- यत्- तदः pañcamī · ekavacanaRight context काले saptamī · ekavacanaSubstitute / term दा prathamā · ekavacana
- Left context Pañcamī (5th case): "after X", the operation applies to what follows (1.1.67 तस्मादित्युत्तरस्य). Also used for limits and sources.
- Right context Saptamī (7th case): "when X follows", the operation applies to what precedes (1.1.66 तस्मिन्निति निर्दिष्टे पूर्वस्य). Also a condition or domain ("in the sense of").
- Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
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Full reading
सर्व-
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
After 1. सर्व 'all' 2. एक 'one' 3. अन्य 'other' 4. किम् 'what' 5 यद् 'which' and 6. तद् 'that' when time is denoted comes the affix दा , the words being in the Locative -7th case.
The word सप्तम्याः 5.2.10 is understood here and not the word इतराभ्यां of the last. This debars त्रल् ॥ Thus सर्वदा or सदा 5.3.6 'at every time' or 'always', एकदा 'once', अन्यदा 'at another time' कदा 7.2.103 'when', यदा 'when', तदा 'then'.
Why do we say काले 'when time is denoted'? Observe सर्वत्रदेशे (where although the case is the 7th, the affix is not दा, because the sense is) 'in every place' or 'every where'.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.