Shortening the Prayers (At-Taqseer)
Bukhari :: Book 2 :: Volume 20 :: Hadith 196
"When the prayers were first enjoined they were of two Rakat each. Later the prayer in a journey was kept as it was but the prayers for non-travellers were completed." Az-Zuhri said, "I asked 'Urwa what made Aisha pray the full prayers (in journey)." He replied, "She did the same as 'Uthman did."
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