Last will of Y’aqub; Scripture of Ibrahim; Country With Largest Muslim Population
Question

                1) What was the last will of Prophet Y’aqub (peace be upon him) for his children before his death? Where do you find this in the Noble Quran?

2)The scripture revealed to Prophet Ibrahim (peace be upon him) is lost but it is mentioned in the Noble Quran in different chapters? Give two references from two chapters in the Noble Quran mentioning this scripture.

3)Which country has the highest Muslim population? How did the people of this country become Muslims?
Praise be to Allah.
    1. The Quran indicates that Y’aqub (peace be upon him) gave final 
    instructions to his sons before he died. “… he said unto his sons, ‘What 
    will you worship after me?’ They said, ‘We shall worship your Ilah (God — 
    Allah) the Ilah (God) of your fathers, Ibrahim, Isma‘il, Ishaq, One Ilah 
    (God), and to Him we submit (in Islam).’” [2:133 – interpretation of the 
    meaning].
    2. The scripture of Ibrahim (peace be upon him) is mentioned in Surat 
    al-A’ala 87:19 (interpretation of the meaning): “The Scriptures of Ibrahim 
    and Musa”; and in Surat al-Najm 53:36-37 (interpretation of the meaning): 
    “Or is he not informed with what is in the Pages (Scripture) of Musa (Mose), 
    and of Ibrahim who fulfilled (or conveyed) all that (Allah ordered him to do 
    or convey).” 
    3. The country with the largest Muslim population in Africa is Nigeria, and 
    in Asia, Indonesia. The Indonesians became Muslim through contact with 
    Muslim traders from Hadramawt as is well known. Perhaps this is what the 
    questioner wanted to know, even though the question is not quite clear.