Call to Prayers (Adhaan)
حَدَّثَنَا أَبُو مَعْمَرٍ، قَالَ حَدَّثَنَا عَبْدُ الْوَارِثِ، قَالَ حَدَّثَنَا عَبْدُ الْعَزِيزِ، عَنْ أَنَسٍ، قَالَ كَانَ النَّبِيُّ صلى الله عليه وسلم يُوجِزُ الصَّلاَةَ وَيُكْمِلُهَا.Narrated Anas:The Prophet (ﷺ) used to pray a short prayer (in congregation) but used to offer it in a perfect manner
From Sahih al-Bukhari, whose reports the scholars accept as authentic.