Answered by Shaykh Faraz Rabbani
My wife is breast feeding my child. I wanted to know if breastfeeding invalidates wudhu, as she sometimes prays straight after having fed our daughter.

Walaikum assalam wa rahmatullah,
I pray this finds you in the best of health and spirits.
No, breastfeeding doesn’t affect the validity of wudu in any way whatsoever. Rather, wudu is only invalidated by the things mentioned in the following answer:
And Allah alone gives success.
Faraz Rabbani