ata ātyantikaṁ kṣemaṁ
pṛcchāmo bhavato 'naghāḥ
saṁsāre 'smin kṣaṇārdho 'pi
sat-saṅgaḥ sevadhir nṛṇām
ataḥ - therefore (due to the rarity of seeing pure devotees of the Lord); ātyantikam - supreme; kṣemam - auspiciousness; pṛcchāmaḥ - we are asking; bhavataḥ - you; anaghāḥ - O sinless ones; saṁsāre - in the material world; asmin - this; kṣaṇa-ardhaḥ - lasting half a moment; api - even; sat-saṅgaḥ - association with devotees; sevadhiḥ - a treasure; nṛṇām - for human society.
This is a quotation from Śrīmad-Bhāgavatam (11.2.30).