SB 6.5.4-5

tad-upasparśanād eva
 vinirdhūta-malāśayāḥ
dharme pāramahaṁsye ca
 protpanna-matayo ’py uta
tepire tapa evograṁ
 pitrādeśena yantritāḥ
prajā-vivṛddhaye yattān
 devarṣis tān dadarśa ha
Synonyms: 
tat — of that holy place; upasparśanāt — from bathing in that water or touching it; eva — only; vinirdhūta — completely washed away; mala-āśayāḥ — whose impure desires; dharme — to the practices; pāramahaṁsye — executed by the topmost class of sannyāsīs; ca — also; protpanna — highly inclined; matayaḥ — whose minds; api uta — although; tepire — they executed; tapaḥ — penances; eva — certainly; ugram — severe; pitṛ-ādeśena — by the order of their father; yantritāḥ — engaged; prajā-vivṛddhaye — for the purpose of increasing the population; yattān — ready; devarṣiḥ — the great sage Nārada; tān — them; dadarśa — visited; ha — indeed.
Translation: 
In that holy place, the Haryaśvas began regularly touching the lake’s waters and bathing in them. Gradually becoming very much purified, they became inclined toward the activities of paramahaṁsas. Nevertheless, because their father had ordered them to increase the population, they performed severe austerities to fulfill his desires. One day, when the great sage Nārada saw those boys performing such fine austerities to increase the population, Nārada approached them.