Bg 2.49

durena hy avaram karma
buddhi-yogad dhanan-jaya
buddhau saranam anviccha
krpanah phala-hetavah

Word for word: 
durena — discard it at a long distance; hi — certainly; avaram — abominable; karma — activity; buddhi-yogat — on the strength of Krishna consciousness; dhanam-jaya — O conqueror of wealth; buddhau — in such consciousness; saranam — full surrender; anviccha — try for; krpanah — misers; phala-hetavah — those desiring fruitive results.

Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
O Dhananjaya, keep all abominable activities far distant by devotional service, and in that consciousness surrender unto the Lord. Those who want to enjoy the fruits of their work are misers.

Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
One who has actually come to understand one’s constitutional position as an eternal servitor of the Lord gives up all engagements save working in Krishna consciousness. As already explained, buddhi-yoga means transcendental loving service to the Lord. Such devotional service is the right course of action for the living entity. Only misers desire to enjoy the fruit of their own work just to be further entangled in material bondage. Except for work in Krishna consciousness, all activities are abominable because they continually bind the worker to the cycle of birth and death. One should therefore never desire to be the cause of work. Everything should be done in Krishna consciousness, for the satisfaction of Krishna. Misers do not know how to utilize the assets of riches which they acquire by good fortune or by hard labor. One should spend all energies working in Krishna consciousness, and that will make one’s life successful. Like misers, unfortunate persons do not employ their human energy in the service of the Lord.