Qaṭr al-Nada wa-ball al-Sada ( Larabci: قطر الندى وبل الصدى, lit. 'Dewdrop and the Quenching of Thirst' ' Ruwa da Ruwan enishin ruwa'), ya kasan ce wani littafi ne nahawun larabci wanda Ibn Hisham al-Ansari ya rubuta (1309 - 1360 CE) don koyon yaren larabci.