How does a Muslim know that he says "La ilaha illa Allah" (There is no god but Allah) sincerely from his heart?
Machine translationRead the Arabic original
Question:
Honorable Shaykh, may Allah grant you success, the questioner asks: How do I know, Honorable Shaykh, that I am saying[As-Saffat 37:35] sincerely from my heart?
Answer:
How do you know your heart? No one knows their own heart, whether they are sincere or not. Does he say it for the sake of visions and reputation? Or does he say it out of greed for wealth? Or does he say it believing in it and having faith in it? Yes.
Honorable Shaykh, may Allah grant you success, the questioner asks: How do I know, Honorable Shaykh, that I am saying
There is no deity but Allah
لَا إِلَٰهَ إِلَّا اللَّهُAnswer:
How do you know your heart? No one knows their own heart, whether they are sincere or not. Does he say it for the sake of visions and reputation? Or does he say it out of greed for wealth? Or does he say it believing in it and having faith in it? Yes.
Source
قناة «العلامة الدكتور صالح الفوزان»، كيف يعرف المسلم أنه يقول لا إله إلا الله خالصًا من قلبه؟ للشيخ صالح الفوزان — youtube.com
The Arabic text is a machine transcription of the audio recording.