Vowing that if the 3 got married, their families will be invited for a picnic

Q: When we were about fifteen or sixteen years old, and my colleagues and I made a vow to go on a picnic with our wives when we get married. Afterwards, one of us died without getting married. Now each of us has a wife. Please give us your Fatwa concerning this. May Allah reward you best.

A: The two who got married have to fulfill their vow, as long as it entails nothing prohibited. Besides, they should take care that their wives wear Hijab (veil) and cover their faces in the presence of Ajanib (men other than a husband or permanently unmarriageable male relatives). (Part No. 23; Page No. 209) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.