Muwatta Malik
Book 8, Hadith 28
Arabic hadith text
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ دَاوُدَ بْنِ الْحُصَيْنِ، عَنِ ابْنِ يَرْبُوعٍ الْمَخْزُومِيِّ، أَنَّهُ قَالَ سَمِعْتُ زَيْدَ بْنَ ثَابِتٍ، يَقُولُ الصَّلاَةُ الْوُسْطَى صَلاَةُ الظُّهْرِ .
Translation
Yahya related to me from Malik from Da'ud ibn al-Husayn that IbnYarbu al-Makhzumi said, "I heard Zayd ibn Thabit say, 'The middleprayer is the prayer of dhuhr.' "