What are the four things Prophet Muhammad (peace be upon him) advised concerning travel, fasting, prayer, and visiting mosques?
 Narrated Qaza'a Maula:                     (freed slave of) Ziyad: I heard Abu Sa`id Al-khudri narrating four things from the Prophet and I appreciated them very much. He said, conveying the words of the Prophet. (1) "A woman should not go on a two day journey except with her husband or a Dhi-Mahram. (2) No fasting is permissible on two days: `Id-ul-Fitr and `Id-ul-Adha. (3) No prayer after two prayers, i.e. after the Fajr prayer till the sunrises and after the `Asr prayer till the sun sets. (4) Do not prepare yourself for a journey except to three Mosques, i.e. Al-Masjid-AI-Haram, the Mosque of Aqsa (Jerusalem) and my Mosque."