Assalam aleykum. If you paryed (maybe severel times) and then remembered that you forgot to do ablution (wudu or ghusl) should you redo your prayer? I know there is a lot of information about this in the internet and almost everyone say that your prayers then invalid and you must redo them. But i did not see any proof for that. On the contrary there are a lot of hadiths when you do something wrong in prayer, for example if you turn to right dirrection or even forget rakaahs, you don't have to redo your prayers. And also does not Quran says "Our Lord! Condemn us not if we forget or fall into error" 2286. Please if you have any hadith when our prophet (sas) said to redo prayers if you forget ablution please post it. Thank you all. P.S. Abu Hurayrah (may Allah be pleased with him) reported that the Messenger (peace and blessings be upon him) said, ?Allah does not accept any Prayer if a person breaks his wudu?, until he does wudu?? This hadith does not say anything about forgeting ablution. If you insist that it does and you should understand it letteraly, then what if you break your wudu but did not notice, then your prayers will not be accepted as you have to understand the hadith litteraly. Also there is a hadith about fasting during ramadan. When you forgot and it something then it is as if Allah (awt) had feed you, and your fast is not broke and you do not have to fast extra for that day. Is this not another reason that you do not have to redo your prayers if you forgot ablution. If you forget a thing and then remember, ask for forgiveness and amend. 3953 Say O My servants who exceeded all bounds against themselves, despair not of the mercy of God. Truly, God forgives all impieties. Truly, He is The Forgiving, The Compassionate.