Bukhari

Narrated Anas bin Malik: offered four rak`at of Zuhr prayer with the Prophet (p.b.u.h) at Medina and two rak`at at Dhul-Hulaifa. (i.e. shortened the `Asr prayer).

And Ali ibn Abi Talib (may Allah be pleased with him), when he set out (intending to travel) from Kufa, began to shorten the prayer from the time when the houses of Kufa were still visible. And upon his return, when he was told that this is Kufa ahead, he said: "We will not perform the full prayer until we enter the city."

And Ali ibn Abi Talib (may Allah be pleased with him), when he set out (intending to travel) from Kufa, began to shorten the prayer from the time when the houses of Kufa were still visible. And upon his return, when he was told that this is Kufa ahead, he said: "We will not perform the full prayer until we enter the city."

Narrated Anas bin Malik: offered four rak`at of Zuhr prayer with the Prophet (p.b.u.h) at Medina and two rak`at at Dhul-Hulaifa. (i.e. shortened the `Asr prayer).

Narrated `Aisha: "When the prayers were first enjoined they were of two rak`at each. Later the prayer in a journey was kept as it was but the prayers for non-travelers 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."