What is the ruling on doubt regarding ritual purity during tawaf, and what is required of him if he has completed his 'Umrah?

Question:
He says: Honorable Shaykh, may Allah grant you success, I performed 'Umrah. I doubted that my wudu' had been broken during the tawaf. After the tawaf, I contacted several shaykhs to ask for a ruling, but none of them answered me. So I completed my 'Umrah and returned to my city. Is there anything required of me?

Answer:
Doubt does not obligate you to do anything. If you were certain that your wudu' was broken during the tawaf or before the tawaf, then you are still in the state of ihram, so you must hasten to go to Makkah, perform the 'Umrah, and put on the clothes of ihram again. However, if the matter is one of doubt, then doubt does not affect the act of worship. Purity, once achieved, is not broken except by certainty of the factor that breaks it, not by doubt. For this reason, they said: "Certainty is not removed by doubt." This is a rule.