Hazrat Moulana Muhammad Ilyaas (rahmatullahi ‘alaih) once mentioned:

We should acknowledge and show appreciation to all the means and avenues through which deen has come to us. Not acknowledging and showing appreciation is a means of ingratitude and a cause of great deprivation. Nabi (sallallahu ‘alaihi wasallam) has said in his mubaarak hadeeth:

من لم يشكر الناس لم يشكر الله (رواه الطبراني)

The one who has not shown gratitude to people has not shown gratitude to Allah Ta‘ala.

Malfoozaat Hazrat Moulana Muhammad Ilyaas (rahmatullahi ‘alaih) pg. 97