What is the ruling of the Shari'ah regarding the questioner's right to claim a share in her father's house, given that she stated he took an amount from her mother's dowry to purchase the land upon which the house was built, and considering that she possesses a sum of money left with her by her father?

If the father took money from his daughter's dowry and used it to purchase land, and he affirmed that she has a share in the land, then she is entitled to this share. The brothers are not obliged to comply with this unless they confirm it or there is evidence. Their reliance on the Hadith "You and your wealth belong to your father" is not valid here because the father did not own the money; rather, he made the daughter a partner in purchasing the land. If the brothers are convinced, the daughter will have a share in the land proportionate to her money's contribution to its price (42.3%). As for the amount the father left with her (90,0), it enters the inheritance and is distributed among all heirs. It is advisable to seek judgment from people of knowledge or the judiciary to resolve the dispute.