Is it proper to partake of food at such a person’s home whose means of income is of Haraam sources?
Is it proper to attend such weddings and receptions in which there is singing and dancing?
If the entire income or most of it is from Haraam sources then it will not be proper to eat at such person’s home. On the other hand if most of the income is from Halaal sources or the person informs him that the food is from Halaal income then in this case it is permissible to partake of his food. But to abstain is of Taqwa when most is Halaal. To attend such weddings and receptions where there is singing and dancing is not proper. If however a person is present at such gatherings, then he should try his best to stop such vices. If he is unable to do so, then he should leave.
( Shaami – Vol.6 – Pg.348 / Kifaayatul Mufti – Vol.9 – Pg.179 / Fataawa Abdul Hai – Pg.410)
And Allah knows best.
Mufti Waseem Khan