I am a nationality(removed) Syed woman from both sides, maternal and paternal. My sister is in love with a (removed) boy. They were studying together in the same university. From what I know they are strict (removed). My sister wants to marry this (removed) boy but my family, especially I am very much against this. Please advise me on how to convince her to stop talking to him, and also please tell me any dua or Quran surah which I can recite to change my sisters mind and heart from marrying. Please also tell me some points which I can tell her to change her mind like how difficult it is for a shia Syed woman to marry outside of sect.