I have started a new business. I made an oath that I will give 10% of my earnings in the path of Allah. Can I donate this money towards building Masjids?
Since in the aforementioned case, the oath made by the questioner is not binding upon him, he is free to donate his earning towards the Masjid or any other cause.
And Allah knows best.
Is there an expiation for falsely swearing while placing one's hand on the Holy Qur'an?
English 0 Oaths and Vows