Assalaamu alaikum
I've never heard any hadith or any scholar saying that lie invalided ablution, still someone can help with regard to this and stil you can check kitabul wudu in bukhari or muslim (books of hadith).
Volume 1, Book 4, Number 216:
Narrated Anas bin Malik:
Whenever the Prophet went to answer the call of nature, I used to bring water with which he used to clean his private parts.
Volume 1, Book 4, Number 224:
Narrated Hudhaifa:
Once the Prophet went to the dumps of some people and passed urine while standing. He then asked for water and so I brought it to him and he performed ablution.
Volume 1, Book 4, Number 178:
Narrated 'Ali:
I used to get emotional urethral discharges frequently and felt shy to ask Allah's Apostle about it. So I requested Al-Miqdad bin Al-Aswad to ask (the Prophet ) about it. Al-Miqdad asked him and he replied, "On has to perform ablution (after it)."
Volume 1, Book 4, Number 177:
Narrated 'Abbas bin Tamim:
My uncle said: The Prophet said, "One should not leave his prayer unless he hears sound or smells something."