Anas bin Malik reported,

The time for prayer arrived, so those whose homes were near the mosque went to perform ablution, while a group remained behind. The Prophet ﷺ was brought a stone basin containing water. He placed his hand in it, but the basin was too small for him to spread his hand inside, so he drew his fingers together and placed them in the basin. The entire group performed ablution from it.I asked, "How many were they?"He replied, "Eighty men."

Bukhari 3575

Sahih

حدثنا عبد الله بن منير سمع يزيد أخبرنا حميد

عن أنس رضي الله عنه قال

حضرت الصلاة فقام من كان قريب الدار من المسجد يتوضأ وبقي قوم فأتي النبي ﷺ بمخضب من حجارة فيه ماء فوضع كفه فصغر المخضب أن يبسط فيه كفه فضم أصابعه فوضعها في المخضب فتوضأ القوم كلهم جميعا قلت كم كانوا قال ثمانون رجلا

البخاري 3575صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Virtues
Chapter
Signs of prophethood in Islam
Numbering
Darussalam 3575
Bukhari 3575