Hadith 1:65
Narrated Anas (rad):
Allah’s Messenger (ﷺ) used only one Mudd of water for ablution and one Sa’ to five Mudd of water for his bath [ Agreed upon].
وَعَنْهُ قَالَ: { كَانَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -يَتَوَضَّأُ بِالْمُدِّ, وَيَغْتَسِلُ بِالصَّاعِ إِلَى خَمْسَةِ أَمْدَادٍ } مُتَّفَقٌ عَلَيْه ِ (71)
Original Reference: Bulugh al-Maram 56