Converted to other sect

I am too much worried for one of my elder sister. She is 33, she got married 4 years back. She has now 2 sons alhamdullilah. Problem is that she left offering prayers after getting married after one year. Her husband used to pray in the starting but he also left. From starting he has very different opinion about islam about namaz, life after death. he also has a veryyy close Qadyani friend, his childhood friend. My brother in law family is Sunni muslim, rest of family members offer namaz. But my brother in law is different. Since last two year we haven't seen him and my sister offer pray. She used to wear dupatta on head but she left now.
When her second son born last year someone via Phone gave Azaan to my nephew. My sister told us that they are following some Peer but she didn't tell us more than that. We asked her but she and her husband told they will never tell us about that.
I am too much worried about them. Please pray for them and tell me any dua so that I can read for them. and tell me the solution what should we do.

Assalam Alaikum,

Nice to see you so much concerned about your Sister and her religion. Its a very common thing that women changes their way of life and some times their beliefs also. You can do little about this but you may remind her the days she was close to her Tauheed. I think they are following Bariely firka where peers are given much importance than your Tauheed and Sunna of Prophet S.A.W.

Don't give up keep reminding her about her old days when she was not married.

Regards,
Faisal

fais wrote: Assalam Alaikum, Nice to see you so much concerned about your Sister and her religion. Its a very common thing that women changes their way of life and some times their beliefs also. You can do little about this but you may remind her the days she was close to her Tauheed. I think they are following Bariely firka where peers are given much importance than your Tauheed and Sunna of Prophet S.A.W. Don't give up keep reminding her about her old days when she was not married. Regards, Faisal

Exactly I truly agree with your comment.God is great he will take care of her children's keep hope.