.
La haula wa la quwwata illa billah.
Whenever the Prophet of Allah (S) was pleased with anything, he used to say,

.
Alhamdu lillahil lazi benematehi tatam as saalehaat
and whenever there was a sad event he said

.
Al hamdu lillahi ala kulle haal.
Imam Ja’far As-Sadiq (as) has narrated from the Prophet of Allah (S) that he used to praise Allah every day. He used to recite, as much as his physical condition permitted, the following words,

.
Al hamdu lillahi rab il aalameen katheeran ala kulle haal.
Imam Ja’far As-Sadiq has said that one who says,

.
Alhamdu lillahi kama huwa ahlehi,
the chroniclers of deeds will tell to Allah that they were tiring recording good deeds in his Nama al-Aamaal. Allah will say, “Write whatever my creature is saying. Leave his record of deeds for Me to update!â€‌

The Superiority Of Astaghfar-Seeking Allah’s Forgiveness
Amir’ul-Mu’mineen (as) has said that the smell of sins is warded off by the fragrance of repentence. Seeking Allah’s forgiveness (Astaghfar) becomes the cause of enhancement of one’s sustenance.
Imam Zain-ul-’Abidin (as) has said that a person who has the habit of saying

.
Astaghfar Allah Rabbi wa atoobe alaih
will never be proud and conceited.
Whichever group the Prophet of Allah (S) visited, he used to spend more time in saying the Astaghfar.
It is narrated that the Prophet of Allah used to say the Astaghfar a hundred times every night, although he was a Masoom (innocent) and not susceptible to commit any sins.Therefore, saying Astaghfar in itself is a abig invocation, whether one has committed any sin or not. Astaghfar is liked by the Creator and His Prophet (S).
It is narrated from Imam Ja’far As-Sadiq (as) that when a person commits a sin, he gets a respite of seven hours to repent and seek Allah’s forgiveness by saying the Astaghfar three times. If he does this, then the sin will not be entered in his Nama al-Aamaal. The Astaghfar is

.
Astaghfarullah allazi la ilaha illa huwal hai al qayyumo wa atoobu ilaihi.
Then the Imam (as) said, “Whoever repeats Astaghfar Allah a hundred times in a day, Allah will forgive seven hundred sins of his.Remember, there is no virtue in a person who can commit seven hundred sins in a day!â€‌
It is narrated from Imam Ja’far As-Sadiq (as) when a Mu’min commits forty sins in a day and night, and in repentence recites the following invocation:

.
Astaghfarullah allazi la ilaha illa huwal haiulqayyumo badeeus samawate walarz zul jalale wal ikrame waasaalahu an yusalli ala muhammadin wa aale muhammadin wa atoobo alayya,
then Allah will pardon his sins.

Miscellaneous Invocations
Imam Ja’far As-Sadiq (as) has said that he was surprised why a person who is scared of an enemy doesn’t recite the following:

.
Hasbanallaha wa naimal wakeel
Because Allah has said that those who utter these words have acquired a great Bounty.
The Imam (as) was surprised that why people don’t recite the following words that Prophet Yunus (as) recited while he was in the belly of the fish:

.
La ilaha anta subhanaka inni kunto min azzaalemeen
Because Allah says that He heard the prayer of Yunus and gave him relief from his trouble.
The Imam (as) wondered that when a person’s enemies are deceitful against him, he doesn’trecite these words

.
Ufawwazo amri ilallahi innallaha baseerum bilibaad
Because Allah says, thereafter, that when the Mu’mins of the Tribe of Pharo recited these words, He protected them from the deceit of their enemies.
The Imam (as) wondered that when a person aspires for wealth and property, why doesn’t he recite the following words

.
Maasha Allaha lahaula wala quwwata illa billahi
Because thereafter, Allah has promised to answer the Mu’min’s prayers.
One person complained to the Prophet (S) about fears and the burden of debts. The Prophet (S) advised him to recite the following words

.
Tawakkalto alalhai al lazi la yamooto wal hamdu lillahil lazi lam yattakhizo sahebatan wa la waladan wa lam yakunlahu shareekun filmulke wa lam yakunlahu waliun min azzulle wakabirrehu takbeera
The prophet of Islam (S) narrated that prophet Adam (as) complained to Allah about fears and uneasiness. Jibrael (as) came and said that if he recited the following words, his fears would vanish

.
La haula wa la quwwata illa billahi
Also the Prophet of Allah (S) said that Allah will shower His Bounties on a person who recited the words

.
Al hamdu lillahi rabbil aalameen
The person who is engulfed in sorrow and difficulties should recite

.
La haula wala quwwata illa billahil alil azeem
The Prophet (S) also said that one Night of Meraj Allah has sent the following words through a Revelation

.
La haula wala quwwata illa billahi wala maljaam minka illa ilaika
Imam Ja’far As-Sadiq (as) has said that when a person recites the following words, while offering supplications, his prayers will definitely be answered:

.
Maasha allaho lahaula wala quwwata illa billahi
The Imam (as) also said when a person recites the following words seven times

.
Ya arham ar rahemeen
The angels say, â€کyour voice has been heard by the Arham ar Rahemeen and whatever you have wished for will be granted by Him!’
And when a person repeats ten times the words

.
Ya Allaho
Then Allah says, â€کAsk for whatever is required by you!’
Imam Ar-Ridha’ (as) said: When a person is afflicted with difficulties he should continuously recite

.
Ya Raoofo ya Raheemo
It is narrated from Imam Ja’far As-Sadiq (as) when one recites the verses of “Qul hu walla,â€‌ “Inna anzalnaâ€‌ and “Ayat al Kursiâ€‌
Facing the Kaaba, Allah will definitely answer his wishes because these contain the Ism al-Azam (the ineffable words).
Imam Ar-Ridha’ (as) has said the following are Ineffable Words

.
Ya haiyo ya Qayyum
It is narrated from Imam â€کAli bin al Husayn (as) that the following supplication is based on Ism al-Azam and reciting it will get the prayers answered:

.
Ya allaho ya Allaho ya Allaho wahdaka wahdaka la shareeka laka antal mannan badius samawaate wal arza zul jalale wal ikraame wazussamail izaame wazul izzallazi la yuramo wa ilahukum ilahun wahedun la ilaha illa huwar Rahman urraheeme wa salallaho ala muhammadin wa aalehi ajmaeen
It is narrated from Sakeen bin Ammar that one night he was asleep in the city of Mecca. He saw a person in the dream asking him to awaken and see that a person was reciting Invocations to Allah. He awoke from the sleep, but fell asleep again. He saw the same dream a second time. He awoke and fell asleep again. When he saw the dream again, he heard a loud voice saying that Imam Musa bin Ja’far (as) reciting the Ism al-Azam. He took a bath, wore fresh clothes and went near the Hajr al-Aswad. He found a revered person prostrating toward the Kaaba. He went and stood near him. When he heard intently, the following words were audible to him:

Yanooro ya quddooso (three times)

Ya haiyo ya Qayyumo (three times)

Ya haiyo la yamooto (three times)

Ya haiyo heena la haiyo (three times)

Ya haiyo la ilaha illa anta (three times)

Asaloka be-an la ilaha illa anta (three times)
Sikeen says that the Imam (as) repeated the words so many times that he could memorise them.
Imam Muhammad Al-Baqir (as) says that one who recites the following words will certainly get his prayers answered:

.
Ya asma as saame eena wa ya absaran naazereena wa ya asraul haasebeena ya arham ar raahemeena wa ya ahkamul haakemeena