I brought water to `Uthman bin `Affan to perform the ablution while he was sitting on his seat. Heperformed the ablution in a perfect way and said, "I saw the Prophet (ﷺ) performing the ablution in thisplace and he performed it in a perfect way and said, "Whoever performs the ablution as I have donethis time and then proceeds to the mosque and offers a two-rak`at prayer and then sits there (waitingfor the compulsory congregational prayers), then all his past sins will be forgiven." The Prophet (ﷺ)further added, "Do not be conceited (thinking that your sins will be forgiven because of your prayer).