Hazrat Moulana Ashraf Ali Thanwi (rahmatullahi ‘alaih) once mentioned the following:
When it comes to following the sunnah, then generally, people only think of the sunnahs of salaah, fasting, etc. However, there are sunnahs that apply to every dimension of human living, as Rasulullah (sallallahu ‘alaihi wasallam) has shown us how to conduct in every situation of life. If a person emulates and upholds certain sunnahs, but neglects to practice on other sunnahs, then though he will receive benefit, he will not receive the full benefit of emulating the complete sunnah.
(Malfoozaat Hakeemul Ummat 13/227)