Grammatical Sūtra: यमः समुपनिविषु yamaḥ samupaniviṣu
Individual Word Components: yamaḥ samupaniviṣu
Sūtra with anuvṛtti words: yamaḥ samupaniviṣu pratyayaḥ (3.1.1), paraḥ (3.1.2), ca (3.1.2), ādyudāttaḥ (3.1.3), ca (3.1.3), dhātoḥ (3.1.91), kṛt (3.1.93), kriyāyām (3.3.10), kriyārthāyām (3.3.10), bhāve (3.3.18), akartari (3.3.19), ca (3.3.19), kārake (3.3.19), saṃjñāyām (3.3.19), ap (3.3.57), anupasarge (3.3.61), vā (3.3.62)
Type of Rule: vidhi
Preceding adhikāra rule:3.2.134 (1ā kveḥ tacchīlataddharmatatsādhukāriṣu)

Description:

And the affix 'ap' comes optionally after the verb 'yam', when the upasargas 'sam', 'upa' 'ni' and 'vi' are in composition; or even when it is upasarga-less. Source: Aṣṭādhyāyī 2.0

[The kŕt 1.93 affix 1.1 aP 57 is optionally 62 introduced after 1.2 the verbal stem 1.91] yam- `restrain' (1.1.33), (whether) co-occurring with preverbs sám-°, úpa-°, ní-° or ví-° [or not 61 to form an action noun 18 to denote a kāraka other than the agent 19]. 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: 3.3.18, 3.3.19, 3.3.57, 3.3.61, 3.3.62

Kāśikāvṛttī¹: anupasarge vā iti vartate. sam upa ni vi ityeteṣu upapadeṣu anupasarge 'pi yamer   See More

Kāśikāvṛttī²: yamaḥ samupaniviṣu ca 3.3.63 anupasarge vā iti vartate. sam upa ni vi ityeteṣu    See More

Nyāsa²: yamaḥ samupaniviṣu ca. , 3.3.63

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