It was the time for prayer, and those whose houses were near got up and went to their people (to perform ablution), and there remained some people (sitting). Then a painted stove pot (Mikhdab) containing water was brought to Messenger of Allah ﷺs The pot was small, not broad enough for one to spread one's hand in; yet all the people performed ablution. (The sub narrator said, "We asked Anas, 'How many persons were you?' Anas replied 'We were eighty or more"). (It was one of the miracles of Messenger of Allah ﷺ).  

حَضَرَتِ الصَّلاَةُ فَقَامَ مَنْ كَانَ قَرِيبَ الدَّارِ إِلَى أَهْلِهِ وَبَقِيَ قَوْمٌ فَأُتِيَ رَسُولُ اللَّهِ ﷺ بِمِخْضَبٍ مِنْ حِجَارَةٍ فِيهِ مَاءٌ فَصَغُرَ الْمِخْضَبُ أَنْ يَبْسُطَ فِيهِ كَفَّهُ فَتَوَضَّأَ الْقَوْمُ كُلُّهُمْ قُلْنَا كَمْ كُنْتُمْ قَالَ ثَمَانِينَ وَزِيَادَةً  

Anas bin Malik said, "Once the time of the prayer became due and the people whose houses were close to the Mosque went to their houses to perform ablution, while the others remained (sitting there). A stone pot containing water was brought to the Prophet, who wanted to put his hand in it, but It was too small for him to spread his hand in it, and so he had to bring his fingers together before putting his hand in the pot. Then all the people performed the ablution (with that water)." I asked Anas, "How many persons were they." He replied, "There were eighty men."  

حَضَرَتِ الصَّلاَةُ فَقَامَ مَنْ كَانَ قَرِيبَ الدَّارِ مِنَ الْمَسْجِدِ يَتَوَضَّأُ وَبَقِيَ قَوْمٌ فَأُتِيَ النَّبِيُّ ﷺ بِمِخْضَبٍ مِنْ حِجَارَةٍ فِيهِ مَاءٌ فَوَضَعَ كَفَّهُ فَصَغُرَ الْمِخْضَبُ أَنْ يَبْسُطَ فِيهِ كَفَّهُ فَضَمَّ أَصَابِعَهُ فَوَضَعَهَا فِي الْمِخْضَبِ فَتَوَضَّأَ الْقَوْمُ كُلُّهُمْ جَمِيعًا قُلْتُ كَمْ كَانُوا قَالَ ثَمَانُونَ رَجُلاً