He saw a man praying (And his bowing and prostration) were lacking. Hudhaifah said to him: 'For how long have you been praying like this?' He said: "For forty years.' He said: 'You have not been praying for forty years and if you die praying like this, you will have died following a path other than the path of Muhammad ﷺ. Then he said: 'It is possible for a man to pray briefly, but still do it properly." (Using translation from Nasāʾī 1312)   

«مَا صَلَّيْتَ مُنْذُ أَرْبَعِينَ سَنَةً وَلَوْ مِتَّ وَأَنْتَ تُصَلِّي هَذِهِ الصَّلَاةَ لَمِتَّ عَلَى غَيْرِ فِطْرَةِ مُحَمَّدٍ ﷺ» ثُمَّ قَالَ «إِنَّ الرَّجُلَ لَيُخِفُّ وَيُتِمُّ وَيُحْسِنُ»