Tafseer of the aayah (interpretation of the meaning)And 
          Allaah will never lead a people astray …” [al-Tawbah 9:115]
Question

                I hope that you can explain to us the meaning of the aayah (interpretation 
of the meaning)And Allaah will never lead a people astray after He has guided them until He makes clear to them as to what they should avoid. Verily, Allaah is the All-Knower of everything” [al-Tawbah 9:115]
Praise be to Allah.Allaah says, describing 
          His noble Self and His just Wisdom, that He does not lead people astray 
          except after His Message has reached them, and proof has been established 
          against them, as He says (interpretation of the meaning):
“And 
          as for Thamood, We showed and made clear to them the Path of Truth (Islamic 
          Monotheism) through Our Messenger (i.e. showed them the way of success), 
          but they preferred blindness to guidance” [Fussilat 41:17] 
 According 
          to another view on the interpretation of this aayah, Mujaahid said concerning 
          the aayah (interpretation of the 
          meaning): 
“And 
          Allaah will never lead a people astray after He has guided them” [al-Tawbah 
          9:115] . This aayah 
          refers to the issue of believers praying for forgiveness for the mushrikeen 
          in particular. Allaah has made clear the ruling on this matter, it becomes 
          a sin, so it is their choice whether they do it or not. 
 Ibn 
          Jareer said: Allaah is saying that He would not decree misguidance for 
          them as a result of their seeking forgiveness for their dead mushrik 
          relatives, after He had guided them and given them faith in Him and 
          His Messenger, until He had told them of the prohibition so that they 
          would desist. But before He explained that this is not allowed, if you 
          did that, He would not decree that you would be led astray because of 
          that. For obedience and disobedience have to do with commands and prohibitions, 
          but with regard to matters that have not been commanded or prohibited, 
          no one can be considered to be obedient or disobedient.