صحیح ابن حبان
Ibn Hibban
كتاب الصلاة
Book of Prayer
باب صفة الصلاة - ذكر البيان بأن المرء مأمور بالصلاة على النبي المصطفى صلى الله عليه وسلم في صلاته عند ذكره إياه بعد التشهد
Chapter on the Manner of Prayer – Clarification that one is commanded to send blessings upon the Prophet in prayer after tashahhud
1 hadith
Hadith 1960
Sayyiduna Fadala bin Ubaid (may Allah be pleased with him) narrates: The Prophet Muhammad (peace and blessings be upon him) heard a man supplicating during prayer: he had neither praised Allah Almighty nor sent blessings upon the Prophet (peace be upon him). So the Prophet (peace be upon him) said: This person has acted hastily. Then he called him and said: When any one of you performs prayer (or begins to supplicate), he should first praise and glorify Allah Almighty, then send blessings upon the Prophet (peace be upon him). After that, he may supplicate for whatever he wishes.