Abu Dawud Book 2, Hadith Number 1196.
Chapter : The prayer of a traveller.
Narated By N/A : The above mentioned tradition has also been narrated through a different chain of transmitters by ‘Abd Allah b. Abi ‘Ammar who narrated it in a like manner.
Abu Dawud said: This has been transmitted by Abu ‘Asim and Hammad b. Mas’adah as transmitted by Ibn Bakr.