MOUTHFUL OF WATER H 478 "If the world had a value equal to that of the wing of a mosquito in the Sight of Allah, He would not have allowed an unbeliever to drink a mouthful of water from it." R 478 Tirmidhi with a chain up to Sahl, the son of Sa'ad Sa'idi who related that the Prophet, praise and peace be upon him, said this hadith.
476- وعن سهلِ بن سعد الساعدي رضي الله عنه ، قَالَ : قَالَ رسول الله صلى الله عليه وآله وسلم : "لَوْ كَانَت الدُّنْيَا تَعْدِلُ عِنْدَ الله جَنَاحَ بَعُوضَةٍ ، مَا سَقَى كَافِراً مِنْهَا شَرْبَةَ مَاءٍ" رواه الترمذي ، وقال : "حديث حسن صحيح" .