As soon as it is midday say the following It is reported that Imam al-Baqir (a.s) instructed Muhammad ibn Muslim to keep on saying this as it keeps his eyes from haram

سُبْحَانَ ٱللَّهِ

subhana allahi

All glory be to Allah,

وَلاَ إِلٰهَ إِلاَّ ٱللَّهُ

wa la ilaha illa allahu

there is no god save Allah,

وَٱلْحَمْدُ لِلَّهِ ٱلَّذِي لَمْ يَتَّخِذْ صَاحِبَةً وَلاَ وَلَداً

walhamdu lillahi alladhi lam yattakhidh sahibatan wa la waladan

and all praise is due to Allah, Who has not taken a wife or a son

وَلَمْ يَكُنْ لَهُ شَرِيكٌ فِي ٱلْمُلْكِ

wa lam yakun lahu sharikun fi almulki

and Who has not a partner in the kingdom,

وَلَمْ يَكُنْ لَهُ وَلِيٌّ مِنَ ٱلذُّلِّ

wa lam yakun lahu waliyyun min aldhdhulli

and Who has not a helper to save Him from disgrace;

وَكَبِّرْهُ تَكْبِيراً

wa kabbirhu takbiran

and magnify Him with all magnificence.

Recite 8 Units/ Rak'ats (2 X 4 ) Nafilah ( Supererogatory) Noon Prayer - Recommended before Zuhr  In the first two units, say the Takbir statement seven times & say,

اعُوذُ بِٱللَّهِ مِنَ ٱلشَّيْطَانِ ٱلرَّجِيمِ

a`udhu billahi min alshshaytani alrrajimi

I pray for Allah’s protection from Satan, the accursed.

Recite Surah al-Faatihah and S al-Tawhid in the first unit and S al-Fatihah and Surah al-Kafirun (No. 109) in the second. Upon accomplishment, you may repeat the Takbir statements three times, Tasbih al-Zahra', and then say the following prayer:

اللَّهُمَّ إِنِّي ضَعِيفٌ

allahumma inni da`ifun

O Allah, I am weak;

فَقَوِّ فِي رِضَاكَ ضَعْفِي

faqawwi fi ridaka da`fi

so, (please) strengthen my weakness in the course of Your pleasure,

وَخُذْ إِلَىٰ ٱلْخَيْرِ بِنَاصِيَتِي

wa khudh ila alkhayri binasiyati

lead my forelock to goodness,

وَٱجْعَلِ ٱلإِيـمَانَ مُنْتَهَىٰ رِضَائِي

waj`ali al-imana muntaha rida'i

cause faith to be the utmost of my pleasure,

وَبَارِكْ لِي فِيمَا قَسَمْتَ لِي

wa barik li fima qasamta li

bless for me that which You have decided for me,

وَبَلِّغْنِي بِرَحْمَتِكَ كُلَّ ٱلَّذِي ارْجُو مِنْكَ

wa ballighni birahmatika kulla alladhi arju minka

make me attain, by means of Your mercy, all that which I wish from You,

وَٱجْعَلْ لِي وُدّاً

waj`al li wuddan

and appoint love for me,

وَسُرُوراً لِلْمُؤْمِنِينَ

wa sururan lilmu'minina

delight for the believers,

وَعَهْداً عِنْدَكَ

wa `ahdan `indaka

and a covenant with You.

You may then stand up to offer next couple of units as exactly as the previous couple except that you may utter one statement of Takbir instead of seven. You may then offer another couple of units as same as you have offered the previous. Upon accomplishing these four units of prayer, you may say the same supplications and also say Tasbih al-Zahra' as has been previously cited. The last two units (of the eight-unit Supererogatory Noon Prayer) may be offered between the adhan and Iqamah. Say the following  prayer after the iqamah:

اللَّهُمَّ رَبَّ هٰذِهِ ٱلدَّعْوَةِ ٱلتَّامَّةِ

allahumma rabba hadhihi aldda`wati alttammati

O Allah, Lord of this perfect supplication

وَٱلصَّلاَةِ ٱلْقَائِمَةِ

walssalati alqa'imati

and established prayer,

بَلِّغْ مُحَمَّداً صَلَّىٰ ٱللَّهُ عَلَيْهِ وَآلِهِ

balligh muhammadan salla allahu `alayhi wa alihi

(please) assign to Muhammad, may Allah bless him and his Household,

ٱلدَّرَجَةَ وَٱلْوَسِيلَةَ

alddarajata walwasilata

the rank, right of mediation,

وَٱلْفَضْلَ وَٱلْفَضِيلَةَ

walfadla walfadilata

excellence, and advantage.

بِٱللَّهِ اسْتَفْتِحُ

billahi astaftihu

With Allah do I commence,

وَبِٱللَّهِ اسْتَنْجِحُ

wa billahi astanjihu

from Allah do I seek success,

وَبِمُحَمَّدٍ صَلَّىٰ ٱللَّهُ عَلَيْهِ وَآلِهِ اتَوَجَّهُ

wa bimuhammadin salla allahu `alayhi wa alihi atawajjahu

and in the name of Muhammad, may Allah bless him and his Household, do I turn my face (towards Allah).

اللَّهُمَّ صَلِّ عَلَىٰ مُحَمَّدٍ وَآلِ مُحَمَّدٍ

allahumma salli `ala muhammadin wa ali muhammadin

O Allah, (please) send blessings upon Muhammad and the Household of Muhammad,

وَٱجْعَلْنِي بِهِمْ عِنْدَكَ وَجِيهاً فِي ٱلدُّنْيَا وَٱلآخِرَةِ وَمِنَ ٱلْمُقَرَّبِينَ

waj`alni bihim `indaka wajihan fi alddunya wal-akhirati wa min almuqarrabina

and, in their names, make me worthy of regard in this world and in the Hereafter, and of those drawn near to You.

You may recite the Surahs with low voice except for the basmalah. It is preferred to recite S al-Fatihah and S al-Qadr at the first unit and Sura al-Fatihah and Surah al-Tawhid at the second. After the tashahhud statement in the second unit, you may add the following:

وَتَقَبَّلْ شَفَاعَتَهُ وَٱرْفَعْ دَرَجَتَهُ

wa taqabbal shafa`atahuwarfa` darajatahu

And (please) admit his intercession and raise his rank.