Sahih al-Bukhari · The Book of Wudu (Ablution)

22- بَابُ الْوُضُوءِ مَرَّةً مَرَّةً:

(22) Chapter. The washing of the body parts (i.e., the parts which are washed in ablution) once only while performing ablution.

1 hadith · references 157–157