6.3.87
तीर्थे ये
Operational rule vidhi
स is substituted for समान् before तीर्थ when the affix यत् is added to it.
Word by word (padaccheda)
Right context तीर्थे saptamī · ekavacanaRight context ये saptamī · ekavacana
- 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
तीर्थे ये
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
स is substituted for समान् before तीर्थ when the affix यत् is added to it.
Thus सतीर्थ्यः = समाने तीर्थे वासी 4.4.107. 'a fellow-student'?
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.