"I heard Anas narrate that the Prophet ﷺ said: "Bow and prostrate properly when you bow and prostrate.'"  

عَنِ النَّبِيِّ ﷺ قَالَ أَتِمُّوا الرُّكُوعَ وَالسُّجُودَ إِذَا رَكَعْتُمْ وَسَجَدْتُمْ