بُلُوغُ الْمَرَامِ
Bulugh al-Maram 327
The Book of Prayer
وَعَنْ مَالِكِ بْنِ الْحُوَيْرِثِ - رضى الله عنه - قَالَ : قَالَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -{ صَلُّوا كَمَا رَأَيْتُمُونِي أُصَلِّي } رَوَاهُ اَلْبُخَارِيُّ . [1]
Narrated Malik bin Al-Huwairith (RA): Allah's Messenger (ﷺ) said: "Pray as you have seen me praying." [Reported by al-Bukhari].
Sunnah.com reference: Book 2, Hadith 222