Mu'awiya bin Salah bin Hadayr معاوية بن صالح بن حدير · The Book of Purification

"I heard the Messenger of Allah (ﷺ) offering the (funeral) prayer for one who had died, and I heard him say in his supplication: 'Allahummaghfir lahu warhamhu wa 'afihi was a'fu 'anhu, wa akrim nuzulahu wa wassi' ,adkhalahu waghsilhu bil-ma'i wath-thalji wal-baradi wa naqqihi min al-khataya kama ynaqqath-thawb al-abyad min ad-danas. (O Allah, forgive him and have mercy on him, keep him safe and sound and forgive him, honor the place where he settles and make his entrance wide; wash…

"I said: 'O Messenger of Allah! How is Wudu' done?' He said: 'As for Wudu', when you perform Wudu', and you wash your hands to clean them, your sins come out from between your fingers and fingertips. When you rinse your mouth and nostrils, and wash your face and hands up to the elbows, and wipe your head, and wash your feet up to the ankles, you are cleansed of all your sins. When you prostrate your face to Allah,…

"The Messenger of Allah (ﷺ) said: 'Whoever performs Wudu' and does it well, then says: "Ashhadu an la ilaha ill-Allah was ashhadu anna Muhammadan 'abduhu wa rasuluh (I bear witness that there is none worthy of worship except Allah, and I bear witness that Muhammad is his slave and Messenger)," eight gates of Paradise will be opened for him, and he may enter through whichever one he wishes.'"

"The Messenger of Allah (ﷺ) said: 'Whoever performs Wudu' and does it well, then prays two Rak'ahs in which his heart and face are focused, Paradise will be his."