षष्ठी चानादरे

Operational rule vidhi

The 6th-Case-affix is used (as well as the 7th), when disregard is to be shown after that by whose action the time of another action is indicated.

Word by word (padaccheda)

Substitute / term षष्ठी prathamā · ekavacanaIndeclinable च avyayaRight context अनादरे saptamī · ekavacana

Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
Indeclinable An avyaya such as च "and", वा "optionally", न "not".
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").

Full reading

षष्ठी च अनादरे

Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.

Commentary

The 6th-Case-affix is used (as well as the 7th), when disregard is to be shown after that by whose action the time of another action is indicated.
This is Genitive Absolute. रुदतः रुदति वा प्राव्राजीत् 'in spite of her weeping, he went away.' The force of this genitive is that of the English word 'not withstanding' 'in spite of' 'for all,' &c., नन्दाः पशव इव हताः पश्यतो राक्षसस्य 'the Nandas were killed like so many beasts Rakshasa looking on,' (not-with-standing that Rakshasa was looking on).

Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.