Narrated `Aisha:
the mother of believers: Allah enjoined the prayer when He enjoined it, it was two rak`at only (in every prayer) both when in residence or on journey. Then the prayers offered on journey remained the same, but (the rak`at of) the prayers for non-travelers were increased.
Reference | : Sahih al-Bukhari 350 |
In-book reference | : Book 8, Hadith 2 |
USC-MSA web (English) reference | : Vol. 1, Book 8, Hadith 346 |
(deprecated numbering scheme) |