Sayyiduna Abu Lubabah bin Abd al-Mundhir (may Allah be pleased with him) said: "I asked the Messenger of Allah (peace and blessings be upon him) about purification," and he (peace and blessings be upon him) said: "There is no Muslim who rinses his mouth but Allah Almighty forgives him every sin that came from his tongue that day; and when he washes his hands, Allah Almighty forgives him every sin that his hands sent forth that day; and when he wipes his head, (he becomes so purified of sins that) it is as if he were as on the day his mother gave birth to him."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Musa bin Uqbah except al-Samti, and his son is alone in narrating it; and it is not narrated from Abu Lubabah except with this chain."
Hadith Referenceالمعجم الأوسط / باب الميم / 8314
Hadith Gradingمحدثین:إسناده ضعيف لضعف يوسف بن خالد السمتي
Hadith Takhrij«قال الهيثمي: فيه يوسف بن خالد السمتي وقد جمعوا على ضعفه «مجمع الزوائد ومنبع الفوائد، ج 1، ص 226»»