CC Madhya 12.90

prabhu kahe, — ke kata kariyācha sammārjana
tṛṇa, dhūli dekhilei jāniba pariśrama
Word for word: 
prabhu kahe — the Lord said; ke — every one of you; kata — how much; kariyācha — have done; sammārjana — cleansing; tṛṇa — straw; dhūli — dust; dekhilei — when I see; jāniba — I can understand; pariśrama — how much you have labored.
Translation: 
The Lord then told the devotees, “I can tell how much you have labored and how well you have cleansed the temple simply by seeing all the straw and dust you have collected outside.”