It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, who says: I said to the Noble Prophet, peace and blessings be upon him: On the Day of Resurrection, who will be most deserving of your intercession? The Prophet, peace and blessings be upon him, said: O Abu Hurairah! I thought that no one would ask me about this hadith before you, because I have seen your eagerness for hadith. The person who will be most deserving of my intercession on the Day of Resurrection will be the one who says "La ilaha illallah" sincerely and from his heart.

Sayyiduna Abdullah bin Amr bin al-As (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: Whoever recites this dhikr two hundred (200) times in a day: LAA ILAAHA ILLALLAHU WAHDAHU LAA AREEKA LAHU, LAHUL-MULKU WA LAHUL-HAMDU WA HUWA ‘ALAA KULLI AY’IN QADE (There is no true deity except Allah, He is alone, He has no partner, to Him belongs the dominion and to Him belongs all praise, and He is over all things competent), then no one who has passed before will surpass him, and no one among those who come after will reach his rank, except one who does more than this in action.

It is narrated from Sayyiduna Bara’ bin Azib (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Whoever gives a gift of silver, or a gift of milk, or guides someone on the road, he will receive the reward of freeing a slave. And whoever says: "Laa ilaaha illallaahu wahdahu laa shareeka lahu, lahul-mulku wa lahul-hamdu wa huwa ‘alaa kulli shay’in qadeer," he will also be like one who frees a slave.

Sayyiduna Abdullah bin Amr bin al-As (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) used to recite this supplication most frequently on the Day of Arafah: "There is no god but Allah, He is alone, He has no partner, His is the dominion and His is the praise, and He has power over all things."

It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Whoever says this phrase one hundred (100) times in a day: "There is no god but Allah, alone, without partner. His is the dominion and His is the praise, and He is over all things powerful," he will receive the reward of freeing ten slaves, one hundred (100) good deeds will be written for him, one hundred (100) sins will be erased from him, and this deed will be a protection for him from Satan until evening. And no one will bring a deed more virtuous than this except the one who does this deed in greater quantity.

It is narrated from Sayyiduna Abu Darda’ (may Allah be pleased with him), the Messenger of Allah (peace and blessings be upon him) said: Whoever says“La ilaha illallah wahdahu la sharika lahu”(There is no god but Allah, He is alone, He has no partner), he will enter Paradise. I said: Even if he has committed adultery and theft? The Prophet (peace and blessings be upon him) said: Even if he has committed adultery and theft. I asked again: Even if he has committed adultery and theft? The Prophet (peace and blessings be upon him) said: Even if he has committed adultery and theft. I said: Even if he has committed adultery and theft? The Prophet (peace and blessings be upon him) said: Even if he has committed adultery and theft, even if Abu Darda’s nose is rubbed in dust. He says: Then I left from there and began announcing this hadith among the people. Sayyiduna Umar (may Allah be pleased with him) met me, he said: Go back to the Messenger of Allah (peace and blessings be upon him), if people come to know of this, they will rely on it (and abandon deeds). So I returned and informed the Messenger of Allah (peace and blessings be upon him), he said: Umar has spoken the truth.

It is narrated from Sayyiduna Sa’d (may Allah be pleased with him) that a Bedouin came to the Noble Prophet (peace and blessings be upon him) and said: Teach me some concise words so that I may recite them regularly. The Prophet (peace and blessings be upon him) said: Recite these words: LAA ILAAHA ILLALLAHU WAHDAHU LAA AREEKA LAHU, ALLAHU AKBARU KABE AN, WALHAMDU LILLAAHI KATHE AN, WA SUBHAANALLAHI RABBIL ‘AALAMEEN, WA LAA HAWLA WA LAA QUWWATA ILLAA BILLAAHIL ‘AZEEZIL HAKEEM. These are five words. He said: These words are for my Lord; what is there for me? The Prophet (peace and blessings be upon him) said: For yourself, supplicate with this: ALLAHUMMAGHFIR LEE WARZUQNEE WAH-DINEE WA ‘AAFEENEE (O Allah! Forgive me, provide for me, guide me, and grant me well-being).

It is narrated from Sayyida Umm Hani bint Abu Talib (may Allah be pleased with her), she says: One day the Messenger of Allah (peace and blessings be upon him) passed by me. I said: O Messenger of Allah! I have become old and weak, so tell me something that I can do while sitting. The Prophet (peace and blessings be upon him) said: Say "Subhan Allah" one hundred (100) times; this act will be equal for you to freeing one hundred (100) slaves from the descendants of Ismail. Say "Alhamdulillah" one hundred (100) times; this act will be equal for you to giving one hundred (100) bridled and saddled horses in the way of Allah. Say "Allahu Akbar" one hundred (100) times; this act will be equal for you to those one hundred (100) camels which are garlanded and sent towards Makkah during the time of Hajj and are accepted by Allah. And say "La ilaha illallah" one hundred (100) times; this act will fill the space between the heavens and the earth with reward. On that day, no man's deed as great as this will be raised upwards, except for one who does the same as you have done.

It is narrated from Jari, he says: Two men from Banu Salim were companions; when they met each other, one said to the other that the Messenger of Allah, peace and blessings be upon him, said: "Subhan Allah is equal to half the scale, Alhamdulillah fills the scale, and the reward of Allahu Akbar fills the space between the earth and the sky. Fasting is half of patience, and ablution is half of faith."

It is narrated from Sayyiduna Abdullah bin Amr (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Whoever utters these words on earth: La ilaha illallah, Allahu Akbar, Subhanallah, Alhamdulillah, La hawla wa la quwwata illa billah, his sins are forgiven, even if they are as much as the foam of the sea.