The Superiority of Hastening to Break the Fast, and the supplication to say upon Breaking it Riyad as-Salihin 1239
Arabic hadith text
وعن أنس رضي الله عنه قال كان رسول الله صلى الله عليه وسلم يفطر قبل أن يصلي على رطبات، فإن لم تكن رطبات فتميرات فإن لم تكن تميرات حسا حسوات من ماء. ((رواه أبو داود والترمذي وقال: حديث حسن)).
Translation
Anas (May Allah be pleased with him) reported
The Messenger of Allah (ﷺ) used to break his Saum (fasting) before performing Maghrib prayer with three fresh date-fruits; if there were no fresh date- fruits, he will eat three dry dates; and if there were no dry date- fruits; he would take three draughts of water.[At- Tirmidhi].