Sharh Thalathat al-Usul - Salih Al-Fawzan - (174)

Love: you must love this declaration itself and be loyal to the people who uphold it. Whoever does not love the statement or does not love those who live by it will gain no benefit from it.
Submission: the opposite of turning away or abandoning. It is to submit to what the statement requires—worshipping Allah alone with no partner and obeying His commands. Once you have acknowledged and testified that there is no god but Allah, you are obliged to yield to His rulings and His religion. If you merely pronounce la ilaha illa Allah yet refuse to submit to Allah’s law and legislation, the formula will not avail you in the least.
Acceptance: this is acceptance that negates rejection. You must not reject any of the rights contained in la ilaha illa Allah or anything that it entails. Rather, you accept everything it points to, with wholehearted and proper acceptance.

An eighth condition has also been added, expressed in verse:

An eighth was added: to deny as false
All that is worshipped alongside the True God.

That is, one must disavow polytheism; a person is not a true monotheist until he renounces every form of shirk. Allah the Exalted says, “And when Abraham said to his father and his people, ‘Indeed, I am innocent of what you worship’” (Az-Zukhruf 43:26).

These, then, are the conditions of la ilaha illa Allah—eight in all.

والمحبة: أن تكون محبًّا لهذه الكلمة وليًّا لأهلها، أما الذي لا يحبها أو لا يحب أهلها فإنها لا تنفعه. والانقياد: ضد الإعراض والترك، وهو الانقياد لما تدل عليه من عبادة الله وحده لا شريك له، وامتثال أوامره، ما دمت اعترفت وشهدت أنه لا إله إلا الله يلزمك أن تنقاد لأحكامه ودينه، أما أن تقول: لا إله إلا الله، ولا تنقاد لأحكام الله وشرعه فإنها لا تنفعك لا إله إلا الله. والقبول: القبول المنافي للرد، بأن لا ترد شيئًا من حقوق لا إله إلا الله، وما تدل عليه بل تقبل كل ما تدل عليه لا إله إلا الله، تتقبله تقبلًا صحيحًا. وزيد شرط ثامن: وزيد ثامنها الكفران بما ... مع الإله من الأشياء قد ألها أي: البراءة من الشرك، فلا يكون موحدًا حتى يتبرأ من الشرك: ﴿وَإِذْ قَالَ إِبْرَاهِيمُ لِأَبِيهِ وَقَوْمِهِ إِنَّنِي بَرَاءٌ مِمَّا تَعْبُدُونَ﴾ [الزخرف: ٢٦] . هذه شروط لا إله إلا الله، ثمانية شروط.