ßÊÇÈ ÇáÍÌ : Hadeeth No:1558 : 'Abdullah bin Masud: I offered (only a) two Rakat prayer with the Prophet (at Mina), and similarly with Abu Bakr and with 'Umar, and then you d offered in opinions. Wish that I would be lucky enough to have two of the four Rakat accepted (by Allah). ...

ÃÈæÇÈ ÊÞÕíÑ ÇáÕáÇÉ : Hadeeth No:1046 : Anas: Allah's Apostle used to offer these two prayers together on journeys i.e. the Maghrib and the 'Isha'. ...