A small amount of water when a small impurity falls into it
Machine translationRead the Arabic original
The questioner:
A small amount of water, when a very small impurity falls into it, does not become impure.
The Shaykh:
The correct view is that it does not become impure unless the impurity is very small, such as the water in vessels about which the Prophet (peace and blessings be upon him) said, “Pour it out.” If a dog drank from it, he said, “Pour it out,” if it is the water of ordinary vessels that is being monitored,
A small amount of water, when a very small impurity falls into it, does not become impure.
The Shaykh:
The correct view is that it does not become impure unless the impurity is very small, such as the water in vessels about which the Prophet (peace and blessings be upon him) said, “Pour it out.” If a dog drank from it, he said, “Pour it out,” if it is the water of ordinary vessels that is being monitored,
Source
شرح بلوغ المرام [ ابن باز ] [ الشرح الجديد ]، باب المياه — islamhouse.com (2:30)
The Arabic text is a machine transcription of the audio recording.