(63) باب الرُّكُوعِ دُونَ الصَّفِّ
Abu Bakrah narrated that he entered the Masjid when the when the Prophet (ﷺ) was bowing, so he bowed outside the row. The Prophet said:
"May Allah increase you in keenness, but do not do this again."
Reference: Sunan an-Nasa'i 871
In-book reference: Book 10, Hadith 95
English translation: Vol. 1, Book 10, Hadith 872