Sahih Muslim 1571

A'isha reported: The prayer was prescribed as consisting of two rak'ahs, the prayer in travelling remained the same, but the prayer at the place of residence was completed. (Zuhri said he asked 'Urwa why 'A'isha said prayer in the complete form..

Yahya b. Umayya said: I told 'Umar b. al-Khattab that Allah had said: You may shorten the prayer only if you fear that those who are unbelievers may afflict you (Qur'an, iv. 101), whereas the people are now safe. He replied: I wondered about..

Ya'la b. Umayya reported: I said to 'Umar b. al-Khattab, and the rest of the hadlth is the same. ..

Ibn 'Abbas reported: Allah has prescribed the prayer through the word of your Prophet ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) as four rak'ahs when resident, two when travelling, and one when danger is present. ..

Ibn 'Abbas reported: Allah has prescribed the prayer by the tongue of your Apostle ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) as two rak'ahs for the traveller, four for the resident, and one in danger. ..

Musa b. Salama Hudhali said: I asked Ibn 'Abbas: How should I say prayer when I am in Mecca, and when I do not pray along with the Imam? He said: Two rak'ahs (of prayer) is the Sunnah of Abu'l-Qasim ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ). ..