Valmiki Ramayana Sundara Kanda Sarga 41 Shloka 5
Original Shlokaकार्ये कर्मणि निर्दिष्टे यो बहून्यपि साधयेत्। पूर्वकार्याविरोधेन स कार्यं कर्तुमर्हति।।5.41.5।।
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कार्ये in a work to be accomplished, कर्मणि in a work, निर्दिष्टे when the work is entrusted, यः he who, पूर्वकार्याविरोधेन without affecting the earlier work, बहून्यपि many, साधयेत् will achieve, सः he, कार्यम् task, कर्तुम् to do, अर्हति is fit.
'He, who can perform tasks in addition to the objective accomplished without affecting it, is really worthy.