It is reported from al-Zuhri (may Allah have mercy on him) that when Zayd bin Thabit (may Allah be pleased with him) entered the mosque and the people were bowing, he faced the qiblah, said the takbir and went into bowing, then, while still in the state of bowing, he walked softly until he joined the row.
Urwah bin al-Zubayr (may Allah have mercy on him) also used to do the same.
Imam al-Bayhaqi (may Allah have mercy on him) said: We have already mentioned before this the narration of Abdullah bin Mas'ud (may Allah be pleased with him).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 2589