Ritual purity is a condition for the validity of tawaf

Question: What is the evidence that tawaf requires ritual purity?

Answer: The evidence is that the Prophet (peace and blessings be upon him), when he intended to perform tawaf, performed wudu, as stated in the two Sahihs from Aisha (may Allah be pleased with her), who said: "When the Prophet (peace and blessings be upon him) intended to perform tawaf, he performed wudu." And the Prophet (peace and blessings be upon him) said: . This was transmitted as marfu' (traced to the Prophet) and as mawquf (stopping at a Companion) from Ibn Abbas (may Allah be pleased with them both). The mawquf version has a stronger chain of narration, but it is not considered a matter of personal opinion; rather, it is treated as marfu' because when a Companion says something that cannot be said based on personal opinion, it is treated as marfu' to the Prophet (peace and blessings be upon him), provided the Companion is not one who transmits from the Children of Israel. This statement has no connection to the reports of the Children of Israel, and there is no place for personal opinion in it, so it is treated as marfu' to the Prophet (peace and blessings be upon him), as indicated by the aforementioned hadith of Aisha.
So the Prophet (peace and blessings be upon him) performed tawaf in a state of purity and said: .