Hadith 634
Mishkat al-Masabih
Prayer · The Virtues of Prayer - Section 2
Arabic
عَن ابْن مَسْعُود وَسمرَة بن جُنْدُب قَالَا: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «صَلَاةُ الْوُسْطَى صَلَاةُ الْعَصْرِ» . رَوَاهُ التِّرْمِذِيُّ
English translation
Ibn Mas'ud and Samura b. Jundub reported God's Messenger as saying, "The middle prayer is the afternoon prayer.” Tirmidhi transmitted it.