Answered by Ustadh Tabraze Azam
Question: Assalam alaikum,
If I get an itchy feeling in the back passage during or after prayer, then go the bathroom to check if there is filth and discover traces of it by using toilet paper should I renew my wudu and repeat my prayer because of the exiting of filth?
Answer: Wa alaikum assalam wa rahmatullahi wa barakatuh,
I pray that this message finds you well, insha’Allah.
You should assume it happened after the prayer because events are ascribed to their nearest possible times.
And ignore misgivings. If it has happened more than once or twice, it is no longer just an itch.
Please see: A Reader on Waswasa (Baseless Misgivings)
And Allah alone knows best.
Checked & Approved by Shaykh Faraz Rabbani