priyātmajānām asi subhru me matā
tathāpi mānaṁ na pituḥ prapatsyase
mad-āśrayāt kaḥ paritapyate yataḥ
Lord Śiva put forward the argument that even if Satī proposed to go alone, without her husband, still she would not be received well because she was his wife. There was every chance of a catastrophe, even if she wanted to go alone. Therefore Lord Śiva indirectly requested her not to go to her father’s house.