Shri Shri Bhrahma Samhita Verse 54.
I adore the primeval Lord Govinda, who burns up to their roots all
fruitive activities of those who are imbued with devotion and
impartially ordains for each the due enjoyment of the fruits of one's
activities, of all those who walk
in the path of work, in accordance with the chain of their previously
performed works, no less in the case of the tiny insect that bears the
name of indragopa than in that of Indra, king of the devas.
God impartially induces the fallen souls to act in the way that is
consequent on the deeds of their previous births and to enjoy the
fruition of their labors but, out of His great mercy to His devotees,
He purges out, by the fire of
ordeal, the root of all karma, viz., nescience and evil desires.
Karma, though without beginning, is still perishable. The karma of
those, who work with the hope of enjoying the fruits of their labors,
becomes everlasting and endless and is never destroyed. The function
of sannyasa is also a sort of karma befitting an asrama and is not
pleasant to Krsna when it aims at liberation, i.e., desire for
emancipation. They also receive fruition of their karma and, even if
it be disinterested, their karma ends in atma-mamata, i.e.,
self-pleasure; but those who are pure devotees always serve Krsna by
gratifying His senses forsaking all attempts of karma and jnana, and
being free from all desires save that of serving Krsna. Krsna has
fully destroyed the karma, its desires and nescience of those
devotees. It is a great wonder that Krsna, being impartial, is fully
partial to His devotees.