يَا أَيُّهَا الَّذِينَ آمَنُوا إِنْ جَاءَكُمْ فَاسِقٌ بِنَبَإٍ فَتَبَيَّنُوا أَنْ تُصِيبُوا قَوْمًا بِجَهَالَةٍ فَتُصْبِحُوا عَلَى مَا فَعَلْتُمْ نَادِمِينَ (الحجرات: 6
وَمَا كَانَ الْمُؤْمِنُونَ لِيَنفِرُوا كَافَّةً فَلَوْلاَ نَفَرَ مِنْ كُلِّ فِرْقَةٍ مِنْهُمْ طَائِفَةٌ لِيَتَفَقَّهُوا فِي الدِّينِ وَلِيُنذِرُوا قَوْمَهُمْ إِذَا رَجَعُوا إِلَيْهِمْ لَعَلَّهُمْ يَحْذَرُونَ (التوبة: 122
If you get detail history, their has been full Dawah to king Rustam before battle. There went at least three delegation of Sahaba on different days and gave Dawah of Islam to king Rusatm before Battle of Qaadisiyyah. These delegation were
1. First In which order and detail (How to do) both have defined like Prayer like Fasting, Salat and Zakat
2. Second There are certain commands in which order has been given but detail has not been defined. Broad principle have been laid down. Muslims have to decide the finer detail under the ambit of Shariah.
Two main examples are........
2.There is no Hadith stating that 7/8/9……. years is required for becoming Alim from Madarsa/ Islamic University.This Madarsa system was developed as per need and to make learning easy.
(Ref.Autobiography of Abul Hasan Ali Nadvi “KARWANE ZINDAGI” vol 4)
With there participation the work got an interface at a time when other Ulemas were not much attentive to the work. Maulana Ilyas has always acknowledged it and always praised Maulana Ali Miyan.
Ali Miyan visited Peshawar and other parts of (Pakistan) undivided India besides actively doing the effort in India.Apart from this other Ulemas were also took part.
An important Mashwara was called to discuss the ways of participation of students of Madarsa which was attended by Qari Tayyab Sb (R.A) Rector of Darul Uloom Deoband, Mufi Kifayatullah Sb Mufti e Azam Hind,Maulana Mohammad Shafi Sb of Madarsa Abdurrab Delhi,Hafiz Abdullateef Sb of Muzahirul uloom Saharanpur,Maulana Aizaz Ali ,teacher of Darul Uloom Deoband,and Maulana zakariya and Maulana Abdul Qadir Sb Raipuri (RAHMATULLAH ALAIHIM) (Ref :Biography of Ali Miyan:Sawane Mufakkirul Islam page no 197-205,Life and mission of maulana ilyas page no 159)
Routine at some Places that because of our other engagements most of the jamaat does not spend full 3 days.
Take an example .. a group of say 10 brothers were sent to Calcutta from Bombay in jamaat and days are not fixed, three BROTHERS says for 6 days, 2 for 18 days, 2 for 22 days and rest 35 days .So after 22 days only 3 will be left and managing jamaat will be very difficult.
It would be rather problematic. Actually if you sent them anywhere it would be problematic.
This is the reason that a fixed time is specified so that it is easier to organise a jamaat so that they will be together all the time,
However there is no restriction on going for 1 day / 2 days / 4 days / 1 month etc make the responsible brothers aware the time that you intend to go for so it's easier to send them in an appropriate jamaat.
"How much time & sacrifice should Muslims put-in (or sacrifice) for the pleasure of Allah so that we are closer to the practice (manhaj) of the sahaba?"