Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 1 year ago

The Prophet Muhammad (SAWA) himself used to pray Zohr and Asr together, and Maghrib and Isha together in Madina in usual situations as you can read in main Sunni books of Hadeeth like Bukhari and Muslim etc. He used to say when he was asked why: I do not want to put a burden on my Umrah :كي لا أشقّ على أمتي

This is a useful link

http://en.al-shia.org/content/combining-two-prayers-sahih-muslim-and-sahih-bukhari