Definition of Laa ilaha illAllah
Laa ilaha illAllah, you must act practically on its legal order and obligation.
It has legal orders and obligations, Laa ilaha illAllah to just say it is not enough, a lot of people say Laa ilaha illAllah, some Christians say Laa ilaha illAllah, but you must believe in it and act practically on its legal order and obligation, and deny ALL worship offered to other than Allah, it doesn't matter who. Allah will not allow anyone to join Him in his command at all, doesn't matter who, even the prophet ﷺ has nothing to do with worship - he's a slave of Allah, Allah mentions in the Qur'an [about the prophet] he's My slave so many times.
'Glory be to Allah, that his slave...'
Surah Al-Isra, Verse 1:
سُبْحَانَ الَّذِي أَسْرَىٰ بِعَبْدِهِ لَيْلًا مِّنَ الْمَسْجِدِ الْحَرَامِ إِلَى الْمَسْجِدِ الْأَقْصَى الَّذِي بَارَكْنَا حَوْلَهُ لِنُرِيَهُ مِنْ آيَاتِنَا إِنَّهُ هُوَ السَّمِيعُ الْبَصِيرُ
That's the best thing, all the creation of Allah are the slave of Allah, servant of Allah, to serve Allah.
- Shaykh Musa Jibril حفظه الله