(3) باب كَيْفَ فُرِضَتِ الصَّلاَةُ .
It was narrated that 'Aishah said:
"The first time the Salah was enjoined it was two Rak'ahs, and it remained as such when traveling, but the Salah while resident was made complete." (FR)
Reference (FR): Sunan an-Nasa'i 453 (FR)
In-book reference (FR): Book 5, Hadith 6 (FR)
English translation (FR): Vol. 1, Book 5, Hadith 454 (FR)