"I heard Anas bin Malik say: 'The Messenger of Allah ﷺ used to perform Wudu' with a Makkuk (cup) and Ghusl with five Makkuks (cups).'" (Using translation from Nasāʾī 73)
سَمِعْتُ أَنَسَ بْنَ مَالِكٍ يَقُولُ كَانَ رَسُولُ اللهِ ﷺ «يَتَوَضَّأُ بِمَكُّوكٍ وَيَغْتَسِلُ بِخَمْسِ مَكَاكِيَّ»