Narrated Yahya b. Yazid al-Hannani: I asked Anas b. Malik about the shortening of the prayer (while travelling). He said: When the Messenger of Allah (ﷺ) went out on a journey of three miles or three farsakh (the narrator Shu'bah doubted), he used to pray two rak'ahs.

لا تلتقي أسانيد هذه الأحاديث عند راوٍ واحد، وهي على ٥ رواة في أعلاها.