Question Summary:
Jama Muzakar Ghaib

Question Detail:

Hazrat Sarfarz Khan Safdar r.a said that
"It is principle of Sarf that after Sigha Jama Muzakar Ghaib ( First person , plural , masculine )
Alif is written in Quran
But there are 6 Sighajaat  of Sigha Jama Muzakar Ghaib in Quran ,
after which Alif is not written 
like جاءو ، باءو ، فاءو ، تبوءو
In these sighajaat , Alif is not written due to Sarf's principle.
(But Hazrat didn't answer this question )
And Hazrat said that 
only Sarf's refrence will be acceptable,
don't give Tajweed or Rasm ul Khat reference to solve this question.
 
So what is answer to this question ?
Please answer this.
Jazakallaho Khaira

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
 
In principle, the simple reason for bringing an alif after such words is: 

The alif itself is superfluous but it has to be brought for the above reasons. This Alif is called Aliful Wiqayah or Aliful Fasila 
However these rules and principles of Sarf do not apply to the Quran. One should remember that just as the words of the Quran were revealed by Allah, so is the orthography of the Quran. To oppose this orthography is violating the consensus of the Ummat. Therefore although the Qaida of Sarf is as stated above but because the rules of Sarf were laid down after the revelation of the Quran, therefore the orthography of the Quran itself is not governed by the rules and principles of Sarf. Rather the experts of Sarf use the classical Arabic prose and poetry to compile the rules of Nahw and Sarf and the Quran is the highest form of prose. Imam Ahmad bin Hambal says that opposing the Uthmani orthography is Haram even in a single (و) or (ي) or (ا)
 
And Allah Ta’āla Knows Best
Imran Cyclewala
Student Darul Iftaa
Lusaka, Zambia
Checked and Approved by,
Mufti Ebrahim Desai.