Ghalta Umm 1989 one on netflix

Firdaws married a poor young man and gave birth to a child. Her husband died. She married again to a rich man and left her child with a poor family. Firdaws traveled with her husband for a long time. After her return, she went to meet her son and found that the house had been destroyed. After a while, Firdaws received a letter from a young man telling her that he was her son and that the woman who raised him had explained the truth to him before she died.