Grammatical Sūtra: समासेऽङ्गुलेः सङ्गः samāse'ṅguleḥ saṅgaḥ
Individual Word Components: samāse aṅ‍guleḥ saṅgaḥ (ṣaṣṭhyāḥ sthāne prathamā'tra vyatyayena )
Sūtra with anuvṛtti words: samāse aṅ‍guleḥ saṅgaḥ (ṣaṣṭhyāḥ sthāne prathamā'tra vyatyayena ) pūrvatra (8.2.1), asiddham (8.2.1), saṁhitāyām (8.2.108), apadāntasya (8.3.55), mūrdhanyaḥ (8.3.55), saḥ (8.3.56), iṇkoḥ (8.3.57)
Type of Rule: vidhi
Preceding adhikāra rule:8.3.64 (1sthādiṣv abhyāsena ca abhyāsasya)

Description:

((ṣ)) is substituted for the ((s)) of ((saṅga)) after the word ((aṅguli)) in a compound. Source: Aṣṭādhyāyī 2.0

[The substitute retroflex 55 sibilant ṣ 39 replaces the non-padá-final 55 dental sibilant s 56 of the nominal stem 4.1.1] saṅg-á- `attachement' [co-occurring after 1.1.67 the nominal stem 4.1.1] aṅgúli- `finger' (in a compound) [in continuous utterance 2.108]. Source: From Aṣṭādhyāyī of Pāṇini In Roman Transliteration translated by Sumitra M. Katre, Copyright © 1987. Courtesy of the University of Texas Press.

Source:Srisa Chandra Vasu's Aṣṭādhyāyī of Pāṇini

Anuvṛtti: 8.3.55, 8.3.57, 8.3.56

Kāśikāvṛttī¹: saṅgasakārasya aṅguleḥ uttarasya mūrdhanya ādeśo bhavati samāse. aṅguleḥ saṅgaḥ    See More

Kāśikāvṛttī²: samāse 'ṅguleḥ saṅgaḥ 8.3.80 saṅgasakārasya aṅguleḥ uttarasya mūrdhanya ādeśo b   See More

Nyāsa²: samāsāṅguleḥ saṅgaḥ , 8.3.80 saṅga iti ṣaṣṭhyāḥ sthāne subbyatyayena prathamā. e   See More

Bālamanoramā¹: samāse'ṅguleḥ saṅgaḥ. Sū #1004

Bālamanoramā²: samāse'ṅguleḥ saṅgaḥ 1004, 8.3.80 samāse'ṅguleḥ saṅgaḥ.

1.Source: Arsha Vidya Gurukulam
2.Source: Sanskrit Documents