Bhagwad –Geeta ?
Brahmanyaadhaaya karmaani
Sangam tyaktvaa karoti yaha
Lipyate na sa paapena
Padma patram ivaambhasaa!
Meaning of this slokha : The person who does actions, offering them to Brahman(the Supreme), abandoning attachment is not tainted by sin, just as a lotus leaf which remains unaffected by the water on it.