It is impossible for those who have accepted a material body to totally renounce all activities. However, one who renounces the results of his actions is known as a true renunicate.
Bhagavad Gita - Chapter 18 - Moksha Yoga - The Yoga of Supreme Perfection
Those who do not accept renunciation accept three kinds of results after death – good, bad and mixed. But these results never come to one who is a true sannyasi.
O mighty-armed warrior, learn from Me the five factors that accomplish all actions that are explained in the Vedanta.
The basis (the body), the performer of activities (the false ego), the instrument (the senses), the different types of endeavors and the Supreme Person – these are the five factors that accomplish all actions.
These five factors are the source of all actions, both good and bad, that an embodied being experiences in this world.
Yet the fool that believes only the self is the doer, cannot understand this subject due to meager intelligence.
Those who have no false ego and whose minds are detached – even if they kill everyone on this battlefield, they actually do not kill and are not bound by their actions.
Knowledge, the object of knowledge and the knower are the three elements that stimulate action. The senses, the activity and the performer are the three constituents of action.
According to the sankhya texts, knowledge, action and the performer of action have been classified in three ways according to the modes of nature. Now hear about these.
Knowledge in which the one undivided, imperishable element is perceived in all variegated species of life is considered to be knowledge in the mode of goodness.