Mahāparinibbāna Sutta 4.24.4

4.24.4

Atha kho sā nadikā cakkacchinnā parittā luḷitā āvilā sandamānā, āyasmante ānande upasaṅkamante acchā vippasannā anāvilā sandittha.

Now, though the shallow water in that creek had been churned up by wheels, and flowed cloudy and murky, when Ānanda approached it flowed transparent, clear, and unclouded.