قُلْ اِنِّیْۤ اُمِرْتُ اَنْ اَعْبُدَ اللّٰهَ مُخْلِصًا لَّهُ الدِّیْنَۙ(۱۱)وَ اُمِرْتُ لِاَنْ اَكُوْنَ اَوَّلَ الْمُسْلِمِیْنَ(۱۲)(سورۃ الزمر)
Translation
Say: I have been commanded that I worship Allah in such a way that my devotion is exclusive to Him. (11) And I have been commanded that I be the first obedient one. (12) (Asan Tarjuma-tul-Quran)
Meaning: In this, the teaching has been given that whichever person invites others to a good deed, he should first act upon it himself and show it. (Asan Tarjuma-tul-Quran)