Importance of Rukoo and Sujood...

[Abu Faatimah]

The Prophet ﷺ said:

Verily, a man may perform prayers for sixty (60) years, while not one of his prayers will be accepted from him; (the reason being that) perhaps he will complete the (and perfect) the Rukoo' (bowing), but he will not complete (and perfect) the Sujood (prostration); or perhaps he will complete (and perfect) the Sujood (prostration), but he will not complete (and perfect) the Rukoo' (bowing).

Silsilah al-Ahaadeeth as-Saheehah 2535