Praise be to Allah, and may peace and blessings be upon the Messenger of Allah. To proceed:
“Al-Ahad” is one of the Most Beautiful Names of Allah. It means that Allah تعالى is uniquely One in His Oneness and perfection, with no partner in His Essence, Lordship, Divinity, Names, or Attributes. One of the implications of believing in this Name is that a Muslim singles out Allah تعالى in worship, sincerity, love, glorification, supplication, reliance, and all other forms of worship, and that his heart becomes attached to Him alone.
Allah تعالى says:
﴿Say: He is Allah, One. Allah, the Self-Sufficient. He has not begotten, nor was He begotten, and there is none comparable to Him.﴾ [al-Ikhlas: 1–4]
“Al-Ahad” is the One who is unique and has no partner, who is uniquely characterized by all attributes of perfection. No one resembles Him, and no one shares with Him anything that is exclusive to Him.
Shaykh al-Sa‘di, may Allah have mercy on him, said concerning the meaning of “Al-Wahid, Al-Ahad”:
“He is the One who is unique in possessing all perfection, such that no one shares with Him in any of it.”
Therefore, believing in this Name is not merely knowing its wording; rather, it requires an effect that appears in the servant’s beliefs, worship, and conduct.
One of the greatest implications of believing that Allah is Al-Ahad is for the Muslim to know that Allah alone deserves worship.
Just as He سبحانه is unique in creation, ownership, and management of all affairs, He is likewise unique in deserving worship.
Allah تعالى says:
﴿Shall I take as a protector someone other than Allah, the Originator of the heavens and the earth?﴾ [al-An‘am: 14]
Therefore, the Muslim sincerely devotes his prayer, supplication, and worship to Allah, and does not direct any act of worship to anyone besides Allah.
He prays only to Allah, calls upon only Allah in worship, places his devotional reliance only upon Him, and does not associate any partner with Allah in anything that belongs exclusively to worship.
When the servant becomes certain that Allah is Al-Ahad, having no partner, he knows that his deeds should be done for Him alone.
He therefore strives for sincerity in his words and actions and does not make the praise or approval of people his ultimate goal.
He asks himself concerning every deed: For whom am I doing this?
If it is for Allah, he makes it sincerely for Him. If he fears that showing off may enter his deed, he strives to correct his intention.
Allah تعالى is Al-Wahid, Al-Ahad, Al-Samad, the One to whom creation turns in its needs. He is capable of all things and owns everything.
Therefore, the believer should attach his heart to his Creator before anyone else and know that a created being possesses no power to bring benefit or cause harm to himself except through what Allah has enabled him to do.
This does not mean abandoning means or refusing to benefit from people. Rather, it means that the heart should not become attached to them with devotional attachment or absolute dependence. Reliance should be upon Allah, while taking the legitimate means He has prescribed.
Among the greatest effects of affirming Allah’s Oneness is that the heart settles upon one ultimate purpose: worshipping Allah تعالى and seeking His pleasure.
Allah تعالى says:
﴿Allah presents the example of a man owned by several quarrelsome partners and another man belonging exclusively to one man. Are they equal in comparison? Praise be to Allah! But most of them do not know.﴾ [al-Zumar: 29]
The person whose purposes and allegiances are divided among multiple objects of devotion is not like the one who devotes himself sincerely to the One Allah.
The more firmly a servant establishes Allah’s Oneness, the less attached he becomes to created beings and the more tranquil his heart becomes with his Lord, because he knows that all affairs are in Allah’s hands.
When the heart becomes firmly established upon the understanding that the purpose is to worship Allah, the One, this is reflected throughout the Muslim’s life.
Allah تعالى says:
﴿I did not create jinn and mankind except to worship Me.﴾ [al-Dhariyat: 56]
Worship is therefore not limited to prayer and fasting. Permissible daily activities can become acts of worship through a righteous intention.
Work, seeking lawful provision, rest, sleep, and the affairs of daily life can all help a Muslim obey Allah when they are accompanied by a sound intention.
Therefore, the believer takes care of his time and life, and makes use of his health, free time, wealth, and youth in ways that benefit him before Allah. He does not allow his life to pass without purpose.
Believing in Allah’s Name “Al-Ahad” requires you to single out Allah in your belief, worship, and intentions, and to know that He is unique in perfection, creation, ownership, and management, and that He alone deserves worship.
Among its effects are:
The more firmly the meaning of “Al-Ahad” becomes established in the servant’s heart, the greater his devotion to Allah’s Oneness, sincerity, and tranquility become.
And Allah knows best.