What can be done for someone who has committed
    suicide?
Question

                Salaamu-Alaikum.
I hope you don't mind me asking this question, but my cousin committed
      suicide two weeks ago because he could not handle the exams pressure, according to the
      note he left. The family all know what he has done is terribly wrong and un-Islamic and
      the consequences are stated in the hadiths of our beloved prophet. What I would like to
      know is that is there anything that we can do to help him in the hereafter? Is there
      anything we should be doing to his grave? basically, what should his family do to help
      themselves get over the terrible situation and help him? Please help!
    Jazakallahulkhair .
Praise be to Allah.We ask Allaah to compensate you for this tragedy and reward 
  you for your patience. We have already discussed the issue of suicide in brief 
  under question 373, section 5. As regards what 
  you can do for your deceased loved one: if he was a Muslim who died without 
  having done something that would put him beyond the pale of Islam (such as denying 
  any part of the religion, making fun of some part of it, or totally neglecting 
  Islam to the extent that he did not learn or do anything, etc.), then you can 
  do many kinds of good deeds that may reach him (see question 763 
  for more details).
May Allaah take care of us and you by His Mercy.