It has been narrated that the best hours of Fridays are these coming after the `Asr Prayer. Accordingly, it is recommended to repeat the following invocation one hundred times at that time:

اللَّهُمُّ صَلّ عَلَىٰ مُحَمَّدٍ وَآلِ مُحَمَّدٍ وَعَجِّلْ فَرَجَهُمْ

allahumma salli `ala muhammadin wa ali muhammadin wa `ajjil farajahum

O Allah, bless Muhammad and the Household of Muhammad and hasten their Relief.

Imam Ja`far al-Sadiq (peace be upon him) is reported as saying: i)To invoke Almighty Allah’s blessings upon the Prophet and his Household in the time between the Dhuhr and `Asr Prayers (on Fridays) is equal (in reward) to seventy rakats. ii)One who says the following invocation after the `Asr Prayer on Fridays will be awarded the reward of the righteous deeds of all men and jinn on that day: iii)One who repeats this invocation ten times immediately after the `Asr Prayer on Fridays will receive the blessings of the angels up to the next Friday and the very hour.

اَللَّهُمَّ صَلِّ عَلَىٰ مُحَمَّدٍ وَآلِ مُحَمَّدٍ

allahumma salli `ala muhammadin wa ali muhammadin

O Allah, bless Muhammad and the Household of Muhammad—

ٱلأَوْصِيَاءِ ٱلْمَرْضِيِّينَ

al-awsiya'i almardiyyina

the Successors and the pleased—

بِأَفْضَلِ صَلَوَاتِكَ

bi-afdali salawatika

with the best of Your blessings,

وَبَارِكْ عَلَيْهِمْ

wa barik `alayhim

and confer upon them

بِأَفْضَلِ بَرَكَاتِكَ

bi-afdali barakatika

with the best of your favors.

وَٱلسَّلاَمُ عَلَيْهِمْ

wa alssalamu `alayhim

And peace be upon them

وَعَلَىٰ أَرْوَاحِهِمْ وَأَجْسَادِهِمْ

wa `ala arwahihim wa ajsadihim

and upon their souls and bodies;

وَرَحْمَةُ ٱللَّهِ وَبَرَكَاتُهُ

wa rahmatu allahi wa barakatuhu

and Allah’s mercy and blessings be upon them.

Adding to this, Shaykh al-Tusi says that it is recommended to repeat the following invocation one hundred times at that time:

صَلَوَاتُ اللّهِ وَملاَئِكَتِهِ

salawatu allahi wa mala'ikatihi

The blessings of Allah, His angels,

وَأَنْبِيَائِهِ وَرُسُلِهِ

wa anbiya'ihi wa rusulihi

His prophets, His messengers,

وَجَميعِ خَلْقِهِ

wa jami`i khalqihi

and all of His creatures

عَلَىٰ مُحَمَّدٍ وَآلِ مُحَمَّدٍ

`ala muhammadin wa ali muhammadin

be upon Muhammad and the Household of Muhammad.

وَٱلسَّلاَمُ عَلَيْهِ وَعَلَيْهِمْ

walssalamu `alayhi wa `alayhim

And peace be upon him and upon them

وَعَلَىٰ أَرْوَاحِهِمْ وَأَجْسَادِهِمْ

wa `ala arwahihim wa ajsadihim

and upon their souls and bodies.

وَرَحْمَةُ ٱللَّهِ وَبَرَكَاتُهُ

wa rahmatu allahi wa barakatuhu

So be Allah’s mercy and blessings.

In al-Kafi, Shaykh al-Kulayni has narrated the following: When you complete the `Asr Prayer on Friday, say the following invocation.Almighty Allah will record for him one hundred thousand rewards, erase one hundred thousand of his evildoings, grant him one hundred thousand requests, and elevate him one hundred thousand ranks: He adds that if one repeats the same invocation seven times, Almighty Allah will give him rewards as many as His servants, accept his deeds on that day, and place light between his eyes on the Resurrection Day.

اَللَّهُمَّ صَلِّ عَلَىٰ مُحَمَّدٍ وَآلِ مُحَمَّدٍ

allahumma salli `ala muhammadin wa ali muhammadin

O Allah, bless Muhammad and the Household of Muhammad

ٱلأَوْصِيَاءِ ٱلْمَرْضِيِّينَ

al-awsya'i almardiyyina

the Successors and the pleased

بِأَفْضَلِ صَلَوَاتِكَ

bi-afdali salawatika

with the best of Your blessings,

وَبَارِكْ عَلَيْهِمْ

wa barik `alayhim

and confer upon them

بِأَفْضَلِ بَرَكَاتِكَ

bi-afdali barakatika

with the best of your favors.

وَٱلسَّلاَمُ عَلَيْهِ وَعَلَيْهِمْ

wa alssalamu `alayhi wa `alayhim

And peace be upon him and them

وَرَحْمَةُ ٱللَّهِ وَبَرَكَاتُهُ

wa rahmatu allahi wa barakatuhu

and Allah’s mercy and blessings be also upon them.

Reported from Imam al-Sadiq (peace be upon him) who said: If you wish to please Muhammad and the Household of Muhammad (peace be upon them all) you may say the following invocation:

اَللَّهُمَّ يَا أَجْوَدَ مَنْ أَعْطَىٰ

allahumma ya ajwada man a`ta

O Allah, O He Who is the most magnanimous of all those who may grant!

وَيَا خَيْرَ مَنْ سُئِلَ

wa ya khayra man su'ila

O He Who is the best of all those who are asked!

وَيَا أَرْحَمَ مَنِ ٱسْتُرْحِمَ

wa ya arhama man isturhima

O He Who is the most Merciful of all those whose mercy may be sought!

اَللَّهُمَّ صَلِّ عَلَىٰ مُحَمَّدٍ وَآلِهِ فِي ٱلأَوَّلِينَ

allahumma salli `ala muhammadin wa alihi fi al-awwalina

O Allah, send blessings to Muhammad and his Household among the foremost generations,

وَصَلِّ عَلَىٰ مُحَمَّدٍ وَآلِهِ فِي ٱلآخِرِينَ

wa salli `ala muhammadin wa alihi fi al-akhirina

send blessings to Muhammad and his Household among the last generations,

وَصَلِّ عَلَىٰ مُحَمَّدٍ وَآلِهِ فِي ٱلْمَلأِ ٱلأَعْلَىٰ

wa salli `ala muhammadin wa alihi fi almala'i al-a`la

send blessings to Muhammad and his Household among the Highest Chiefs,

وَصَلِّ عَلَىٰ مُحَمَّدٍ وَآلِهِ فِي ٱلْمُرْسَلِينَ

wa salli `ala muhammadin wa alihi fi almursalina

and send blessings to Muhammad and his Household among the Messengers.

اَللَّهُمَّ أَعْطِ مُحَمَّداً وَآلَهُ

allahumma a`ti muhammadan wa alahu

O Allah, (please) grant Muhammad and his Household

ٱلْوَسِيلَةَ وَٱلْفَضِيلَةَ

alwasilata walfadilata

the right of mediation, preference,

وَٱلشَّرَفَ وَٱلرِّفْعَةَ

walshsharafa walrrif`ata

honor, loftiness,

وَٱلدَّرَجَةَ ٱلْكَبيرَةَ

walddarajata alkabirata

and the grand rank.

اَللَّهُمَّ إِنِّي آمَنْتُ بِمُحَمَّدٍ

allahumma inni amantu bimuhammadin

O Allah, I believed in Muhammad,

صَلَّىٰ ٱللَّهُ عَلَيْهِ وَآلِهِ وَلَمْ أَرَهُ

salla allahu `alayhi wa alihi wa lam arahu

may Allah’s blessings be upon him and his Household, while I have not seen him;

فَلاَ تَحْرِمْنِي فِي ٱلْقِيَامَةِ رُؤْيَتَهُ

fala tahrimni fi alqiyamati ru'yatahu

so, do not deprive me of seeing him on the Resurrection Day,

وَٱرْزُقْنِي صُحْبَتَهُ

warzuqni suhbatahu

confer upon me with the favor of accompanying him,

وَتَوَفَّنِي عَلَىٰ مِلَّتِهِ

wa tawaffani `ala millatihi

cause me to die while I follow his creed,

وَٱسْقِنِي مِنْ حَوْضِهِ

wasqini min hawdihi

and allow me to drink from his Pool

مَشْرَباً رَوِيّاً

mashraban rawiyyan

a drink that is quenching,

سَائِغاً هَنِيئاً

sa'ighan hani'an

palatable, and pleasant,

لاَ أَظْمَأُ بَعْدَهُ أَبَداً

la azma'u ba`dahu abadan

after which I will never be thirsty.

إِنَّكَ عَلَىٰ كُلِّ شَيْءٍ قَديرٌ

innaka `ala kulli shay'in qadirun

Verily, You have power over all things.

اَللَّهُمَّ إِنِّي آمَنْتُ بِمُحَمَّدٍ

allahumma inni amantu bimuhammadin

O Allah, I believe in Muhammad,

صَلَّىٰ ٱللَّهُ عَلَيْهِ وَآلِهِ وَلَمْ أَرَهُ

salla allahu `alayhi wa alihi wa lam arahu

may Allah’s blessings be upon him and his Household, while I have not seen him;

فَعَرَِّفْنِي فِي ٱلْجِنَانِ وَجْهَهُ

fa`arrifni fi aljinani wajhahu

so, (please) show me his face in the gardens of Paradise.

اَللَّهُمَّ بَلِّغْ مُحَمَّداً

allahumma balligh muhammadan

O Allah, convey to Muhammad,

صَلَّىٰ ٱللَّهُ عَلَيْهِ وَآلِهِ

salla allahu `alayhi wa alihi

may Allah’s blessings be upon him and his Household,

مِنِّي تَحِيَّةً كَثيرَةً وَسَلاَماً

minni tahiyyatan kathiratan wa salaman

many greetings and compliments from me.