لا إله إلا الله لا شريك له له الملك وله الحمد وهو على كل شيء قدير
Lā ilāha illā Allāh, lā sharīka lah
A longer declaration of God’s oneness: no god but God, without partner, to Him belong dominion and praise, and He has power over all things.
What it means
This is the declaration of oneness with its additions. After “there is no god but God”, it says that He has no partner, that dominion and praise belong to Him, and that He has power over all things. Each clause restates a part of tawḥīd: God is one, He shares His authority with none, and everything in creation is under His power. It is reported in Sahih al-Bukhari and Sahih Muslim that the Prophet Muhammad (peace be upon him) used to say it after the obligatory prayers, and many Muslims say it then. Many also repeat it in the morning and evening and at the rites of pilgrimage.
Often misunderstood as
Reading it as a slogan overlooks that each of its clauses states a specific point of belief about God’s oneness and authority.
What the sources say
The reports of the hadith collections give several forms of the phrase with small differences in wording, and some add the word waḥdahu, “alone”, after the opening declaration.
Term and Arabic as listed in Ismail al Faruqi, Toward Islamic English (International Institute of Islamic Thought, 1995), p. 57, listed as LĀ ILĀHA ILLĀ ALLAH. LĀ SHARĪKA LAH. LAHU AL MULK WA LAHU AL ḤAMD. WA HUWA ‘ALĀ KULLI SHAY’IN QADĪR.. The definition is restated here.