A word by the Shaykh on the things that invalidate wudu: First: Among the things that invalidate wudu is eating camel meat, with the evidence.
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The Shaykh : And four hundred and a thousand. And returning to what we previously mentioned regarding the things that invalidate wudu, and we clarified that among the things that invalidate wudu is eating camel meat, whether it is from the internal organs, meaning from the belly such as the liver, kidney, and intestines, or otherwise. That is, everything that is within the camel, and everything that the camel's hoof carries, invalidates wudu. And we said that broth and milk do not invalidate wudu. We cited as evidence for this a hadith that perhaps some of you remember now. What is it?
The student: ... .
The Shaykh : Good, you did well. The evidence that milk does not invalidate wudu is the story of the 'Uraynites who came to Madinah and found it disagreeable. So the Prophet (peace and blessings be upon him) ordered them to go out to the camels of zakah and drink from their urine and milk. He did not order them to perform wudu from that. This indicates that wudu from camel milk is not obligatory, but it is better. Likewise, wudu from broth is not obligatory, but it is better. As for meat, fat, kidney, liver, and stomach, all of it invalidates wudu, as we clarified previously.
The student: ... .
The Shaykh : Good, you did well. The evidence that milk does not invalidate wudu is the story of the 'Uraynites who came to Madinah and found it disagreeable. So the Prophet (peace and blessings be upon him) ordered them to go out to the camels of zakah and drink from their urine and milk. He did not order them to perform wudu from that. This indicates that wudu from camel milk is not obligatory, but it is better. Likewise, wudu from broth is not obligatory, but it is better. As for meat, fat, kidney, liver, and stomach, all of it invalidates wudu, as we clarified previously.