Allāh instructs you concerning your children [i.e., their portions of inheritance]: for the male, what is equal to the share of two females. But if there are [only] daughters, two or more, for them is two thirds of one's estate.[164] And if there is only one, for her is half. And for one's parents, to each one of them is a sixth of his estate if he left children. But if he had no children and the parents [alone] inherit from him, then for his mother is one third. And if he had brothers [and/or sisters], for his mother is a sixth,[165] after any bequest he [may have] made or debt.[166] Your parents or your children - you know not which of them are nearest to you in benefit. [These shares are] an obligation [imposed] by Allāh. Indeed, Allāh is ever Knowing and Wise.

— Saheeh International