Jami` at-Tirmidhi, Hadith 279 ⓘ
Al-Bara bin Azib narrated: "The Salat of Allah's Messenger (was such that) when he bowed, and when he raised his head from bowing, and when he prostrated, and when he raised his head from prostration it (all) was nearly the same."
حَدَّثَنَا أَحْمَدُ بْنُ مُحَمَّدِ بْنِ مُوسَى الْمَرْوَزِيُّ، أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ الْمُبَارَكِ، أَخْبَرَنَا شُعْبَةُ، عَنِ الْحَكَمِ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي لَيْلَى، عَنِ الْبَرَاءِ بْنِ عَازِبٍ، قَالَ كَانَتْ صَلاَةُ رَسُولِ اللَّهِ صلى الله عليه وسلم إِذَا رَكَعَ وَإِذَا رَفَعَ رَأْسَهُ مِنَ الرُّكُوعِ وَإِذَا سَجَدَ وَإِذَا رَفَعَ رَأْسَهُ مِنَ السُّجُودِ قَرِيبًا مِنَ السَّوَاءِ . قَالَ وَفِي الْبَابِ عَنْ أَنَسٍ .
also referenced under: Book 2, Hadith 131 (In-Book) & Volume 1, Book 2, Hadith 279 (DarusSalam)