Hadith 180

Sahih Bukhari

Book 10: Call to Prayers (Adhaan)

Chapter 115

Itmam At-Takbir (i.e., to end the number of Takbir or to say the Takbir perfectly) on bowing. [See Fath Al-Bari]

باب إِتْمَامِ التَّكْبِيرِ فِي الرُّكُوعِ

Ibn 'Abbas narrated it from the Prophet ﷺ. One of the narrators of the Hadith is Malik bin Huwairith رضي الله عنه. ​​
قَالَهُ ابْنُ عَبَّاسٍ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ. فِيهِ مَالِكُ بْنُ الْحُوَيْرِثِ.
Sahih al-Bukhari 785
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، قَالَ أَخْبَرَنَا مَالِكٌ، عَنِ ابْنِ شِهَابٍ، عَنْ أَبِي سَلَمَةَ، عَنْ أَبِي هُرَيْرَةَ، أَنَّهُ كَانَ يُصَلِّي بِهِمْ، فَيُكَبِّرُ كُلَّمَا خَفَضَ وَرَفَعَ، فَإِذَا انْصَرَفَ قَالَ إِنِّي لأَشْبَهُكُمْ صَلاَةً بِرَسُولِ اللَّهِ صلى الله عليه وسلم‏.‏
Abu Salama:

When Abu Huraira led us in prayer he used to say Takbir on each bowing and rising. On the completion of the prayer he used to say, "My prayer is more similar to the prayer of Allah's Messenger (ﷺ) than that of anyone of you."