(12) باب اسْتِحْبَابِ إِطَالَةِ الْغُرَّةِ وَالتَّحْجِيلِ فِي الْوُضُوءِ
Abu Huraira reported the Messenger of Allah (ﷺ) said:
My people would come to me on the Cistern and I would drive away persons (from it) just as a person drives away other people's camels from his camels. They (the hearers) said: Apostle of Allah, would you recognize us? He replied: Yea, you would have a mark which other people will not have. You would come to me with a white blaze on your foreheads and white marks on your feet because of the traces of ablution. A group among you would be prevented from coming to me, and they would not meet me, and I would say: O my Lord, they are my companions. Upon this an angel would reply to me saying: Do you know what these people did after you.
Reference: Sahih Muslim 247b
In-book reference: Book 2, Hadith 49
USC-MSA web (English) reference(deprecated numbering scheme): Book 2, Hadith 480