As-Salamu 'Alaykum. My mother does not observe proper Hijab. If my mother asks me to buy things for the garden or something where she would go in public. Would I be sinful since she would use the stuff there why non Mahram can see her?She is making stress about me not going and it could lead to hate

Ustadh AbdulAziz al-Haqqan

U can buy something for the garden as she will go out to the garden either way akhi.