Umar bin Abdul Aziz delivered the sermon (excerpts follow) on assuming the leadership of the Muslims and highlights the importance of living by the tenets of Láiláha illallah.
All praise is due to Alláh, Who opened the doors of knowledge to those who strived in His worship by granting them the key that is Lá iláha illallah (there is no deity worthy of worship except Alláh).
He resurrected the hearts of the knowledgeable worshippers and filled the cups of those who always remember Him from the fountain of Lá iláha illallah.
He perfected the creation, brought them into existence and sealed this perfection with Lá iláha illallah.
He Who created the fetus from a worthless fluid (semen) so that mankind may worship Him with Lá iláha illalláh.
He sent the Messengers to deliver the good news of this Word Lá iláha illalláh and to warn against whatever contradicts it and to understand its implications.
Lá iláha illalláh is the pillar of the religion and the Thick Rope of Alláh; those who adhere to Lá iláha illalláh will never earn failure.
Verily, the minds of the ignorant ones were led astray and the hearts of the stubborn infidels have earned misguidance on account of their taking two gods, even after the full moon of Lá iláha illallah has risen.
“So know (O Muhammad SAW) that La ilaha ill-Allah (none has the right to be worshipped but Allah), and ask forgiveness for your sin, and also for (the sin of) believing men and believing women.” Quran (47:19)
Muhammad (peace be upon him) embraced this word and declared it. So! Fear Alláh the Exalted and renew your faith by night and by day by contemplating the meanings of Lá iláha illalláh.
O you who have wisdom! Seek your means of (eternal) success granted only to the people of Lá iláha illalláh.
Surely, Lá iláha illalláh is the Word of Islam and the key to the Dwelling of Peace (Paradise).
Verily, the heavens and earth would never have remained, nor would anyone acquire safety on the Day of Gathering except by Lá iláha illalláh.
The humankind divided into two parts and went two separate ways: a group of them adhered to Lá iláha illalláh and the other group strayed away from it. They refused it because they knew that the religion of their ancestors would be annulled if they embraced Lá iláha illalláh. All praise is due to He Who made His slaves different from each other with His Wisdom and Will. Indeed, this is one of the proofs to Lá iláha illalláh.
Tuba (a tree in Paradise) is for those who know the meaning of this testimonial, agree with it and practice its implication inwardly and outwardly. By doing so, they would be realizing and tasting the true essence of Lá iláha illalláh. Verily, woe to those who were driven by the devil to fall into polytheism! They became filled to the top with associating others with Alláh in worship and consequently refused with arrogance to submit to Lá iláha illalláh.
Have you not heard Alláh’s Statement:
“And those whom they invoke instead of Him have no power of intercession; except those who bear witness to the truth (i.e. believed in the Oneness of Allah, and obeyed His Orders), and they know (the facts about the Oneness of Allah).” Quran (43:86)
The true essence of Lá iláha illalláh entails directing all acts of worship, intentions and thoughts to Alláh Alone rather than any other object. All other objects of worship are annulled and refuted by Lá iláha illalláh. This is what is meant by disbelieving in Taghut and believing in Alláh Alone, and this is how the heart is purified of anything that is not for Alláh Alone, and cleansed from the intention to commit whatever Alláh has prohibited or dislike for whatever He has commanded.
This is the true essence of Lá iláha illalláh, contrary to the practice of those who utter this testimonial with their words, but contradict it with their actions. These people, do not benefit from saying La iláha illal/ah.
Directing any act of worship to other than Alláh and associating any among the creation with Him in worship are acts of disbelief, even if one pronounced La iláha illalláh a thousand times with his tongue. It was once said to Al Hasan Al-Basri: "Some people say that those who proclaim La iláha illalláh shall enter Paradise." He said, "Yes. For those who proclaim this word and fulfill its implications and requirements, then saying La iláha illalláh shall enter them into Paradise." In addition, Wahb bin Munbih asked: "Is not La iláha illalláh the key to Paradise?" He said, "Yes. However, every key has teeth; if you use a key that has teeth it will open for you, otherwise it will not open."
Therefore, these types of people will not benefit from proclaiming La iláha illalláh because they do not say it from their hearts.
We advise you, O Muslims, to never think that Shirk (Polytheism, which contradicts La iláha illalláh is far away from you, because there are tremendous hindrances and lures that seek to corrupt the sincerity of your uttering La iláha illalláh.
Where are those who associate none with Alláh in regards to their love, fear, hope and worship? Where are those who direct their humbleness, submissiveness, reverence, intention and reliance to Alláh Alone, all the while trusting in Him for each and every thing? All these qualities are parts of the meaning of La iláha illalláh.
O slaves of Alláh, rush to the forgiveness of your Lord and a paradise as wide as the heavens and earth prepared for the Muttaqin (the pious). They are those who fulfill the duties and responsibilities of La iláha illalláh. They are those, who have not placed any other iláh (god) along with Alláh.
Verily, I am a plain warner to you from Him. Hold on to the pillars of La iláha illalláh. Surely, those who reject what La iláha illalláh rejects, assert what it asserts…, then this word will elevate them to the highest grades the grades of La iláha illalláh.
May Alláh direct us all to the blessings of the Noble Qurán and benefit us in whatever is in it of the Áyát and Wise Dhikr. I say this and ask Alláh the Great, and the Most Honored for forgiveness for me, you and all Muslims for every sin. Seek His forgiveness, for He is the Most Forgiving, Most Merciful. {Source: Selected Friday Sermons}