Hadith
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، أَنَّهُ كَانَ يُصَلِّي يَوْمَ الْفِطْرِ قَبْلَ الصَّلاَةِ فِي الْمَسْجِدِ .
Yahya related to me from Hisham ibn Urwa that his father used to pray on the day of Fitr before the prayer in the mosque
Sahih · Salim al-Hilali
Muwatta Malik 440 ·Book 10, Hadith 13·Also available on sunnah.com·