Vowing for Allah and dedicating the reward to another person

Q 2: A man made a vow asking that its reward go to a Wali (pious person). What is the ruling on this?

A: If the man bestows the reward of the vow to the Wali to receive blessings from him, doing so is impermissible. Rather, it is considered Shirk (associating others with Allah in His Divinity or worship) and thus the man in question must not fulfill it. However, if making the vow on behalf of the Wali is intended to grant the latter its reward and the mercy of Allah; the vow stands and has to be fulfilled because it is considered as Sadaqah (voluntary charity) that is given on behalf of the deceased.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.