It is narrated from Sayyidah Aishah (may Allah be pleased with her) that some women from Basrah came to her. She (may Allah be pleased with her) ordered them to clean themselves with water and also said: Order your husbands to do so as well; the Messenger of Allah (peace and blessings be upon him) used to do this, and it is a cure for haemorrhoids.
This is mursal (its chain is broken); I do not think Abu Ammar Shaddad met Aishah.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 516