Ja'far bin Sulaiman al-Daba'i جعفر بن سليمان الضبعي · Jihad (Kitab Al-Jihad)

A man emigrated to the Messenger of Allah (ﷺ) from the Yemen. He asked (him): Have you anyone (of your relatives) in the Yemen? He replied: My parents. He asked: Did they permit you? He replied: No. He said: Go back to them and ask for their permission. If they permit you, then fight (in the path of Allah), otherwise be devoted to them.