Q 2: what should be done concerning promises made before converting to Islam?
Ans: A man should fulfill only the good promises he took before embracing Islam. It is not permissible for him to fulfill promises involving anything prohibited.
May Allah grant us success! May peace and blessings be upon our Prophet Muhammad, his family and Companions!
Permanent Committee for Scholarly Research and Ifta’
Member Deputy Chairman Chairman
`Abdullah ibn Ghudayyan `Abdul-Razzaq `Afify `Abdul-`Aziz ibn `Abdullah ibn Baz
Sahih Muslim : Chapter 7: WHAT A NON-BELIEVER SHOULD DO WITH HIS VOW WHEN HE EMBRACES ISLAM
Book 015, Number 4072:
Ibn ‘Umar reported that Umar (b. Khattab) said: Messenger of Allah, I had taken a vow during the days of Ignorance (Jahiliyya) that I would observe I’tikaf for a night in the Sacred Mosque. He (the Holy Prophet) said: Fulfil your vow.