Valmiki Ramayana Kishkindha Kanda Sarga 7 Shloka 20

मया by me, यत् that, अनुष्ठेयम् to be done, तत् that, विस्रब्धेन without any hesitation, उच्यताम् it may be, तव your, सर्वम् everything, वर्षासु in the rainy season, सुक्षेत्रे इव in a fertile land, सम्पद्यते it will produce good results.

'Now tell me about my duty without any hesitation. I assure you that your desire will be fulfilled, just as seeds sown in a fertile land with timely rains bear fruit.